VoIP–PSTN gateways: test the call path, not the feature list
A practical guide to gateways between packet voice and analogue or circuit telephone interfaces, focused on mapping, testing and operational limits.
Telecom reading
Mobile, Wi-Fi, voice and networks: practical reading for everyday connections.
A practical guide to gateways between packet voice and analogue or circuit telephone interfaces, focused on mapping, testing and operational limits.
A role-based guide to wireless LAN equipment categories and the questions that prevent a catalogue of radios from becoming an unmanageable network.
A practical checklist for selecting and installing a wireless antenna without treating a legacy manufacturer description as current product evidence.
A practical guide to planning a fixed wireless bridge between sites without relying on old model, approval or range claims.
A practical method for setting up home Wi-Fi around room coverage, wired backhaul, guest access and simple fault isolation.
A vendor-neutral checklist for evaluating an embedded wireless module or development platform without assuming the status of any legacy product.
A practical guide to the relationship between a low-power radio foundation and an interoperable device system for sensors, controls and building automation.
A practical explanation of the network edge in a VoIP system, including signalling, media, policy and records needed for controlled routing.
A practical introduction to legacy analog-line interfaces, their place in a PBX design, and tests needed before connecting a live telephone circuit.
A first-party guide to organising telecom research by problem type, from local wireless coverage to voice signalling and equipment integration.
A practical baseline for securing a wireless LAN through access control, maintenance, segmentation and a repeatable response process.
An approachable guide to IEEE 802.11, the difference between MAC and PHY, and practical questions hidden behind a wireless LAN specification.
Understand the WiMAX radio link, subscriber equipment, base station and IP connection, then check the exact implementation before planning a deployment.
A practical explanation of Wi-Fi, its relationship to IEEE 802.11, and the network choices that affect everyday reliability and safety.
A plain-language guide to wireless links, the radio environment, and the decisions that matter before connecting devices or planning coverage.
A May 2008 report on IDC’s mobile-entertainment forecast and reports that Apple was considering music and ringtone options for a future 3G iPhone.
In May 2008, Google’s Android Developer Challenge selected 50 first-round projects from 1,788 submissions, with many involving maps, photographs or location sharing.
Aura Corporation’s fifth Mobile Industry Customer Satisfaction survey drew on 2,750 responses collected between late 2007 and early 2008.
A May 2008 report described T-Mobile’s Top Up and Stretch offer for UK prepaid customers and the competitive logic behind instant-value promotions.
A May 2008 commentary argued that O2’s UK sales approach should not simply be treated as an imitation of Vodafone’s channel changes.
A May 2008 account of a court ruling that let receiver Chantrey Vellacott sell Unique Distribution after an HMRC investigation involving parent company IGB.
In May 2008, Vodafone UK said its pay-monthly plans would include internet and email access under a 500 MB fair-use policy.
Ofcom said in May 2008 that O2 had reached the UK 3G licence requirement of service availability to at least 80 percent of the population.
In May 2008, Nokia and T-Mobile announced plans to combine customised devices and access to both companies’ mobile internet services.
In May 2008, Expansys sold its Portix distribution business to IT distributor Micro-Peripheral and said it would concentrate on its online reseller operation.
A 2008 market report used TomTom’s weaker first-quarter earnings to ask whether falling prices and phone-based navigation would pressure dedicated GPS devices.
A 2008 report examined unconfirmed press accounts suggesting Apple might adapt its European iPhone model to national pricing, subsidy and operator preferences.
CinemaNow and uVuMobile described a 2008 service that let people preview trailers on WAP-enabled phones and initiate downloads to compatible home or personal devices.
Verizon Communications reported higher first-quarter earnings and revenue in 2008, while its wireless unit added more subscribers than AT&T during the period.
In April 2008, Apple said more than 100,000 developers had downloaded its newly announced iPhone software development kit.
An April 2008 account of Brightpoint Great Britain’s purchase of Hugh Symons Group’s wireless distribution business, including inventory and contingent payments.
A 2008 commentary asked how online advertising businesses would adapt if more web use moved from computer monitors to phone screens.
Rogers Communications reported higher first-quarter profit and revenue in 2008, citing postpaid additions, lower churn and strong wireless-data growth.
Infonetics Research saw conditions for indoor cellular access points improving in 2008 as subscriber numbers, broadband use and demand for data services grew.
At Infosec 2008, Howard Schmidt warned that more connected mobile devices and easier access to development tools could make phones a more attractive target for malicious software.
Gartner’s 2008 conference argument was that product adoption reflected social meaning as well as technical capability.
An April 2008 account of Blyk’s UK youth mobile service, which exchanged a monthly allowance of calls and texts for targeted advertising messages.
An April 2008 financial snapshot of Motorola, covering lower sales, a larger loss, and pressure on the company’s mobile-devices division.
An April 2008 description of Orange UK changes to Solo, Venture and Momentum plans, with benefits tied to customer type and contract length.
An April 2008 note on Harrods using QR codes to promote its Design Icons exhibition and considering several mobile and social communication channels.
An April 2008 account of an NHS Greater Glasgow and Clyde project using Wi-Fi and RFID to locate portable medical equipment at Royal Alexandra Hospital.
An April 2008 account of Skype’s preliminary Java-phone client, its market limits, and the cellular charges that still shaped mobile internet telephony.
A January 2008 report on then-new US aviation rules for loose lithium batteries, including the distinction between spare cells and batteries installed in devices.
A January 2008 industry forecast about application-focused phones, emerging open platforms, and the contest for mobile service and content revenue.
A January 2008 account of Go North East’s early handset ticket trial, its account-based purchase flow, and the operational reasons given for the project.
In January 2008, Sprint Nextel was reported to be testing its Xohm service with employees ahead of a planned commercial WiMax rollout in selected US cities.
A January 2008 outlook argued that mature mobile markets faced pressure on average revenue per user and would seek more value from data services.
In November 2007, O2 said it was increasing staffing and training before the UK arrival of Apple’s iPhone.
A November 2007 Sophos survey said that many people admitted using another person’s WiFi connection without permission.
In November 2007, airport operator BAA was reported to be preparing an RFID trial for luggage tracking at Heathrow after equipment had been installed.
A November 2007 SITA survey reported that airlines were rapidly adding web check-in, kiosks, electronic tickets and passenger notifications.
A 2007 commentary used Google’s municipal WiFi efforts and an unhappy Portland experience to argue that citywide wireless networks were harder to build and run than slogans.
A 2007 article offered a list of page-level tactics intended to increase online sales, from headings and descriptions to colour, audio and exit prompts.
A 2007 transport-focused article explained WiFi as a wireless local-network technology and discussed its use in airports, hotels and transit settings.
A 2007 opinion piece looked back to the early web and argued that broadband made richer publishing, media and internet calling more practical.
A 2007 explainer described broadband as a communications method able to carry multiple signals across allocated capacity, often over cable or optical infrastructure.
A January 2007 market report predicted rapid growth for mobile phones that combined WiFi, VoIP and cellular use.
In January 2007, the Zoological Society of London described a study using RFID tags and nest readers to observe the movements of female paper wasps.
A January 2007 Ofcom survey reported that many niche UK providers saw personalised products as their advantage over larger internet service companies.
In January 2007, ABI Research analysts argued that Apple’s newly announced iPhone did not fit their definition of a smartphone because third-party software was not openly.
In November 2006, reports and analyst comments treated an Apple iPhone as a rumour that could reshape handsets if it reached market in 2007.
In November 2006, a US court ruling upheld a CSIRO patent and found Buffalo Technology had infringed it, according to the report.
In November 2006, Vodafone said it was considering a fixed-mobile convergence offer and lower-cost devices resembling BlackBerry-style products.
A November 2006 forecast expected mobile broadband use to grow strongly by 2010, with HSPA and EV-DO expected to carry most connections.
At a Korean VoIP and IPTV event in 2006, Clipcomm presented the BS-T100V as a way to carry a home VoIP service to a mobile phone over Bluetooth.
A 2006 product report described the Netgear SPH101 as a WiFi handset for signing in to Skype without remaining at a computer.
A 2006 list of influential forces in IP telephony put the Asterisk community first and grouped companies, public bodies and individuals around the developing market.
In September 2006, Orange announced Unique, a service intended to let broadband customers use one handset for mobile and VoIP calling.
A 2006 survey described satellite navigation as attractive to UK car buyers until its optional-equipment price was considered.
In September 2006, the dot-mobi domain was opened to the public as a namespace intended for sites designed around mobile-phone access.
In September 2006, Nokia introduced the N95 as a multimedia handset with an integrated GPS receiver, a five-megapixel camera and mapping material.
In September 2006, NTL presented a package combining television, broadband, mobile service and a fixed line.
In September 2006, Intel described Santa Rosa as a forthcoming laptop platform with Nokia HSDPA connectivity and improved graphics for Windows Vista.
A 2006 UK technology awards event honoured ARM leader Sir Robin Saxby for his contribution to the industry.
In September 2006, analysts expected operators and employers to put more controls around mobile devices as data use widened.
A September 2006 report on an Economist Intelligence Unit survey commissioned by BT, which said many banks were not fully using wireless, RFID and IP-network capabilities.
A September 2006 report on Vodafone’s first handset carrying its own name, manufactured by Huawei and aimed at encouraging use of data, television and radio services.
A September 2006 opinion item arguing that possible broadband moves by DirecTV and EchoStar could increase United States competition for bundled home services.
A September 2006 report on a dispute between Clearwire and Peralta Community College over a terminated lease for 2.5 GHz spectrum intended for wireless broadband.
An August 2006 report on Yankee Group research forecasting contact-centre VoIP growth while recording cost, quality, security and reliability concerns.
An August 2006 report on a CIO Jury panel in which organizations described video conferencing and collaboration tools as ways to reduce travel, cost and safety exposure.
An August 2006 report on Point Topic research estimating retail VoIP use worldwide and highlighting Europe, Asia-Pacific, the United States and France.
An August 2006 report that Thales had won a subcontract from BAE to provide transmission and cryptography elements for the first phase of the United Kingdom Army’s Falcon network.
An August 2006 report on Infonetics projections for mobile video, which tied growth expectations to better handsets, compelling services and HSDPA network upgrades.
An August 2006 report on dotMobi’s proposed trademark and public-access phases for selected mobile-oriented domain names, with WIPO involved in the trademark process.
An August 2006 item reporting rumours of private-equity interest in Carphone Warehouse and NTL after NTL’s merger with Telewest and weak customer results.
An August 2006 report on Tropos Networks’ planned MetroMesh router, which separated mesh backhaul and user access across 5 GHz and 2.4 GHz radios.
An August 2006 report on T-Mobile’s MDA Vario II, a Windows Mobile handset marketed to business users with theoretical HSDPA download performance.
An August 2006 report on QUALCOMM’s planned Qualphone acquisition, intended to add IMS client software and interoperability-testing capability to its 3G efforts.
An August 2006 report that China was preparing digital multimedia broadcasting trials before the 2008 Beijing Olympics while 3G licensing remained unresolved.
An August 2006 analysis of Nokia’s Loudeye acquisition as part of an effort to pair music-capable handsets with an integrated digital music service.
An August 2006 item on the Rochester Digital Ripple project, which planned a free wireless network in parts of Rochester with access to utility poles.
An August 2006 news item describing growing mobile use and text messaging in Iraq, where conventional telecommunications were reported as unreliable.
A July 2006 security report on a denial-of-service issue involving IKE version 1 and Cisco VPN 3000 concentrators, with operational mitigation discussed at the time.
A July 2006 comparison of France Telecom, Telefónica and BT, as fixed-line providers responded differently to mobile, broadband and regulatory pressure.
A July 2006 results report in which Alcatel recorded higher sales but lower quarterly profit and gross margin amid price competition in telecom equipment.
A July 2006 account of large Intel desktop-chip reductions after AMD cuts, alongside Intel’s Core 2 Duo introduction and expected effects on PC pricing.
A July 2006 announcement that the WiMAX Forum had selected VeriSign for certificate-related services intended to support device authentication across certified equipment.
A brief July 2006 results item in which France Telecom said reported revenue had risen while comparable growth was smaller and cash-flow targets remained in view.
A July 2006 financial report on France Telecom’s lower first-half profit, modest comparable growth and the pressure of broadband bundles on fixed telephony.
A July 2006 report on O2, Manx Telecom, Lucent and QUALCOMM evaluating lower-frequency 3G coverage against an existing 2100 MHz deployment.
A July 2006 report on HUDlite, a free desktop application intended to make presence and call handling easier for Asterisk-based business systems.
A July 2006 account of Wi-Fi and SIP phones that borrowed mobile-phone design and calling features while relying on early public wireless access.
A compact July 2006 digest covering managed enterprise voice, click-to-call tools, internet-café calling, municipal wireless voice and a Skype promotion.
A 2006 look at whether established carriers could use network controls to protect their own voice services from competing VoIP providers.
A J.D. Power & Associates survey found cable telephone providers ranked highest in five of six US regions, within a defined subscriber sample.
A 2006 security advisory said that flooding IAX2 call requests could prevent an Asterisk PBX from taking new calls unless installations were configured carefully.
Microsoft and Nortel announced a four-year effort to develop and sell business communications products combining software, networking and presence-aware tools.
Skype said partners would release Wi-Fi phones in 2006 with its software preloaded, but the devices could not use hotspots requiring login or payment.
Commissioners were preparing to debate Viviane Reding’s roaming proposals amid objections concerning trade treatment, retail regulation and operator competitiveness.
Ofcom proposed replacing 21 types of UK private-radio licence with three categories and loosening restrictions on use and technology.
Virgin Mobile planned a UK mobile-TV service based on BT Movio, using DAB-IP broadcast capacity rather than relying only on 3G streaming.
A 2006 operator-backed site let travellers compare incoming, local, homeward-call and text-message prices by home network and destination.
Northern Ireland Water Service extended an Xansa-led programme with a seven-year mobile work-management project alongside billing and customer-contact work.
Paul Jacobs’ 2006 comments portrayed phones as increasingly capable computers and forecast devices that could choose among several radio networks.
O2 linked preferred supplier status with public-sector managed-services opportunities and described a fleet-connectivity contract with the AA.
The European Commission’s 2006 roaming proposal began with wholesale limits and contemplated retail caps, drawing objections from mobile-industry representatives.
Vodafone confirmed a majority investment in Yes Telecom but rejected a press report about the price paid for the Manchester-based reseller.
Cisco’s 2006 announcement valued its proposed Meetinghouse Data Communications acquisition at 43.7 million US dollars, subject to closing conditions.
A practical explanation of analogue telephone adapters, FXO and FXS ports, and the voice-path checks that matter when connecting telephone equipment to VoIP.
Google announced localized Google Video storefronts for the United Kingdom, Canada and seven European markets, with local-language presentation and partners.
A 2006 post from Shift’s CTO combined a pitch for SIP-based business communications with criticism of the Canadian VoIP regulatory debate.
Shift Networks’ 2006 release reported revenue, recurring-service and subscriber growth while tying further expansion to sales and distribution investment.
A ProVu guide explained its view of SIP telephony, from registrars and gateways to phones, media services and roaming user identities.
Product copy for the SOYO G668 described a PC-free IP phone with several provisioning methods, voice codecs and network-quality features.
In a 2006 interview, AT&T leadership treated broadband access as the strategic asset and voice over IP as a service that could run on it.
A research article considered how gateway-based architectures and mobile agents could reduce XML and SOAP work on constrained handsets.
A 2006 vendor post argued that standards and session border controllers did not always solve VoIP and video traversal through enterprise firewalls.
A protocol discussion weighed XMPP for medium-sized messaging deployments against SIMPLE for large, federated and carrier-oriented systems.
Infonetics Research reported first-quarter growth for enterprise wireless LAN gear and faster gains in WiMax equipment revenue.
A short market note used Juniper Research estimates to argue that the equipment surge from IP migration would not last indefinitely.
G3T’s 2006 launch announcement focused on a broadband handset intended to avoid PC software and a lengthy installation process.
A promotional article presented Internet phone plans alongside a customer-referral and commission model rather than an independent service comparison.
Australia’s DCITA sought equipment and services to replace its PABX across four Canberra sites, with handsets and softphones in scope.
NTT DoCoMo’s 2006 proposal for a one-year Tokyo trial examined mobile WiMax coverage, movement and network design.
In April 2006, the Bluetooth Special Interest Group said it would use WiMedia ultra-wideband technology in a next-generation Bluetooth specification. The group expected.
Nokia said in April 2006 that it expected the global mobile-device market to grow by at least 15 percent that year, revising an earlier forecast upward. The company.
In April 2006, Broadcom rejected Qualcomm’s allegations that it had used trade secrets and infringed patents connected with W-CDMA chipsets. Qualcomm had filed suit amid.
In April 2006, UK train operator GNER said it expected to equip its rebuilt Mallard trains with Wi-Fi by August, nine months ahead of an earlier schedule. The rollout.
An IDC forecast in 2006 argued that US mobile operators would place greater emphasis on business customers as consumer voice revenue came under pressure. The research.
The UK Ministry of Defence signed a contract with BAE Systems Integrated Systems Technologies in 2006 for a military communications network called Falcon. The system was.
Intel Capital announced a 50 million dollar venture fund for Brazilian start-ups in April 2006, with attention to wireless technology including WiMAX. The company said.
In April 2006, xG Technology said it expected commercial products based on its proprietary xMax wireless technology later that year. The company outlined enterprise.
A 2006 account described media gateways moving beyond the network edge into carrier and enterprise cores. Such equipment translated between circuit-switched and.
A 2006 product description from Axis Communications presented a network camera with both IEEE 802.11g wireless and Ethernet interfaces. The stated purpose was flexible.
A 2006 consumer note described prepaid wireless as an option for people who preferred not to sign a contract, wanted spending control or needed a phone chiefly for.
In March 2006, Lycos and Jajah introduced internet telephony services in the United States, joining an already competitive group of voice providers. Lycos combined PC.
The 2006 TelecomNext conference brought together telephone, cable, media and regulatory leaders as communications companies prepared for closer competition across voice,.
Vodafone completed the sale of its Japanese mobile operation to SoftBank in March 2006, ending its control of Vodafone KK. The deal valued the company at about 15.6.
At TelecomNext in 2006, BellSouth described a wireless broadband option intended to back up a customer’s regular connection during an outage. The proposal followed the.
In March 2006, the US Federal Communications Commission allowed parts of Verizon’s request for relief from business broadband requirements to take effect. The request.
A Yahoo Research and O’Reilly buzz game in 2006 tracked public attention to companies and search terms through a market-style format. The record says Skype was receiving.
A 2006 promotional text presented Session Initiation Protocol systems as a way to connect office extensions over broadband. Its practical idea was that remote sites.
A 2006 commentary on voice over IP described a widening set of consumer services without declaring the public switched telephone network obsolete. It pointed to.
Symantec and the Internet Education Foundation launched a US consumer education effort on wireless and mobile security in March 2006. The first materials were intended.
In March 2006, Alltel said it had acquired the remaining interests it did not own in ten Palmetto MobileNet partnerships serving parts of North and South Carolina. The.
In February 2006, Verizon Wireless said it had filed lawsuits against Florida telemarketers over prerecorded solicitations sent to its customers. The company alleged.
The Telecommunications Industry Association reported a 9 percent increase in US telecom spending for 2005 and attributed the movement to wireless demand, network.
Vodafone announced in February 2006 that it was working with Google on a search feature for Vodafone live!. The intended service would search both the operator’s own.
A 2006 report from the Boston Foundation gave new momentum to plans for a citywide Wi-Fi network in Boston. The report said technology companies including EarthLink,.
In 2006, Motorola mobile chief Ron Garriques said the company did not need to be first with every technical feature. The discussion contrasted Samsung 3G handsets with.
At the 3GSM show in Barcelona in 2006, Symantec described enterprise demand as the first visible market for mobile security software. The company linked that interest to.
A Senza Fili forecast published in 2006 expected mobile-capable 802.16e WiMAX to overtake the fixed 802.16-2004 variant by 2010. The analysis argued that one platform.
In February 2006, Xanadoo described a fixed wireless rollout in Texas before mobile WiMAX had become the focus of the market. The record places a live service in Lubbock.
In February 2006, Verizon Wireless said customers with several specified EVDO handsets could add laptop data access under a voice plan. The change applied to the LG.
In February 2006, Santa Cruz examined participation in a regional California Wi-Fi initiative while local funding supported early planning work.
In February 2006, Philadelphia finalised a ten-year arrangement with EarthLink for municipal wireless broadband, with low wholesale and residential prices proposed.
A February 2006 comparison contrasted the reported speed and consistency of Verizon EVDO with Cingular HSDPA service in San Francisco.
In February 2006, a proposal in North Dakota suggested using high-altitude balloons as wireless repeaters to cover areas beyond conventional cell towers.
In February 2006, TDS Metrocom began commercial fixed-wireless broadband service in Madison after field trials in Appleton, Wisconsin.
In February 2006, Wi-LAN said it would wind down its unprofitable equipment operation and concentrate on broadband wireless intellectual property.
In February 2006, US policymakers considered both a timetable for 700 MHz spectrum clearance and stronger protection for wireless customer information.
In February 2006, Time Warner Telecom gave chief operating officer John Blount a new four-year agreement with higher base pay and bonus target.
In February 2006, research suggested North American cable companies were investing in mesh technology even though widespread deployment interest remained limited.
In February 2006, IEEE draft approval for 802.11n revived a stalled Wi-Fi standards effort and prompted immediate chip announcements.
In February 2006, CSI Wireless announced two GSM fixed-wireless phones intended for places where conventional copper landlines were limited or costly.
In February 2006, Tropos was reported to be discussing outdoor Wi-Fi equipment with cable companies while questioning the capacity of existing cable infrastructure.
In February 2006, Smart Valley and regional partners began preparing a proposal for a wireless network intended to span much of Silicon Valley.
In February 2006, Cingular and Motorola positioned the SLVR as a music-capable handset after the earlier ROKR had drawn criticism.
A February 2006 market report described strong smartphone growth in 2005 but questioned whether owners were using every advertised capability.
In February 2006, the WiMAX Forum awarded its first certification marks for equipment using the fixed 802.16-2004 wireless standard.
In February 2006, Cisco released alerts and fixes for flaws affecting CallManager voice systems and selected IOS network equipment.
In February 2006, the IEEE 802.11n task group unanimously approved an early draft for faster Wi-Fi, while final ratification was still expected later.
In February 2006, Lenovo said selected ThinkPad models would gain integrated Vodafone mobile-data support, with later HSDPA capability planned.
A February 2006 Sandvine report said broadband providers’ bundled voice services had overtaken Skype in European VoIP traffic share during late 2005.
In February 2006, Microsoft combined the teams behind Exchange and real-time corporate communications into a new Unified Communications Group.
In February 2006, Be said new funding would support an ADSL2 plus expansion from London into Birmingham and Manchester.
In February 2006, Motorola presented an indoor access-point concept designed to improve 3G and HSDPA coverage inside business buildings.
In February 2006, AT and T’s chief executive argued that content providers might pay for certain assured broadband delivery arrangements.
In February 2006, Cable and Wireless paired a profit warning with a plan to split its business and the departure of chief executive Francesco Caio.
In February 2006, Virgin Mobile said discussions with NTL on a possible acquisition were still under way after an earlier proposal was rejected.
In February 2006, Wanadoo reported a disruption affecting calls from conventional phones into its Wireless and Talk internet-telephony service.
A February 2006 account described how viewing mobile film trailers in France led to an unexpectedly high Orange data-roaming charge.
In February 2006, THUS said it would acquire Legend Internet and Your Communications while sharpening its focus on business telecoms.
In February 2006, France Telecom outlined a Paris fibre-to-the-home trial intended to test household broadband beyond DSL limits.