Archive for the ‘Skype’ Category

Skype down but recall SS7 outages

Friday, August 17th, 2007

Skype has been down for well over 24 hours now. In the meantime I switched over to using GizmoProject - shame my contact list on Gizmo is so bare. For those who do not know, Gizmo is a Skype clone; it is powered by the same great Global IP Sound (GIPS) codec as well as also using a self-organising peer-to-peer (P2P) network to route the call signalling. It tries to differeniate itself by claiming to be based on completely open standards (e.g. it purports to use standard SIP, although I am unsure how the P2P element is then handled as it is not using any P2P SIP standard) unlike Skype which went for a blackbox approach. I’ve often had software crashes and other problems with Gizmo (C++ runtime errors etc.) plus I dislike the interface in comparison with that of Skype - let alone the fact that my buddy-list is well populated on Skype. Hence when Skype eventually works again, I will be switching back.

For those battling with the telecom vs Internet reliability dichotomy I’d like to throw in a point to reflect on. Signalling system #7 (SS7/C7) has had its degree of outages. See for example Aspects of Integrity in the NII , John C. McDonald ,MBX Inc. Quote:

“Several well-publicized SS7 outages occurred in 1990 and 1991 due to software bugs [6, 7]. The first had a nationwide impact and involved the loss of 65,000,000 calls. Others involved entire cities and affected 10,000,000 customers. In response to a massive outage in September 1991, the mayor of New York established a Task Force on Telecommunications Network Reliability. The task force noted that “the potential for telecommunications disasters is real, and losses in service can be devastating to the end user” 8.”

6 Fitzgerald, K. 1990. “Vulnerability Exposed in AT&T’s 9-Hour Glitch,” The Institute, March.

7 Andrews, E. 1991. “String of Phone Failures Reveals Computer Systems’ Vulnerability,” New York Times, July 3.

8 City of New York. 1992. “Mayor’s Task Force on Telecommunications Network Reliability,” January

Economist Cover - “How the internet killed the phone business”

Sunday, September 18th, 2005

The front page of the Economist the other day (15th September 2005) was “How the internet killed the phone business” (cover picture here). It is offered as premium content to subscribers at the Economist web site. But the bulk of the content can be found free in another article entitled “The Meaning of Free Speech” published in the same issue, see here. The latter article begins ‘The acquisition by eBay of Skype is a helpful reminder to the world’s trillion-dollar telecoms industry that all phone calls will eventually be free‘. Dialpad, another Skype-like firm, in June. AOL, Apple and others have similar products” and goes on to detail the Ebay acquisition of Skype that occurred earlier this month.

Quotes I note for interest/emphases are “even before VOIP makes 100% of telephone calls in the world completely free (which may take many years), it utterly ruins the pricing models of the telecoms industry. Factors such as the distance between the callers or the duration of a call, the key determinants of cost today, are simply irrelevant with VOIP”, “voice service is fast becoming a marketing freebie”. It quotes Cyrus Mewawalla, an analyst at Westhall Capital as stating

VOIP will destroy voice revenues faster than most analysts’ models predict…Voice will very rapidly cease to become a major revenue generator for all telecoms operators, fixed and mobile.

The article splits up operators into “unenlightened” and “enlightened” camps. China Telecom and Madison River Communications are placed in the former camp for blocking Skype and VONAGE, respectively. As is Clearwire and Vodafone Germany for reserving rights to block VoIP calls. Operators are placed in the “enlightened” camp if they offer a flat-rate calling plan or have launched their own VoIP service; Verizon’s VoiceWing and BT’s Broadband Voice are given as examples of operator offered VoIP. Three arguments are given for an operator choosing to embrace VoIP and thus be in the enlightened category; to compete head-on (as the article sees it) with the likes of Skype, to lower their costs dramatically and to “start offering the fun new services that VOIP makes possible and charging for them”. Exciting new services turn out to be video-conferencing, unified messaging and IPTV.

Video-conferencing can already be done with the likes of Skype, so I ignored that service. Unified messaging I find rather boring and thus I again ignored. That leaves IPTV which the article lists as the most exciting service. I think that says it all! To paraphrase “the most exciting service for telephone companies is delivering television”.

Switching to the fairly identical but shorter premium access only article that was front cover, quotes I note for interest/emphases are

the rise of Skype and other VOIP services means nothing more than the death of the traditional telephone business, established over a century ago…the ability to make free or almost-free calls over a fast internet connection fatally undermines the existing pricing model for telephony…that means not just the end of distance and time-based pricing - it also means the slow death of the trillion-dollar voice telephony market, as the marginal price of making calls heads inexorably downwards…it is no longer a question of whether VOIP will wipe out traditional telephony, but a question of how quickly it will do so…perhaps only five years away.

The articles states that mobile operators are the most vulnerable to Skype type services rather than fixed line operators - in particular 3G networks since they have a lot of license money to recoup, often provide unrestricted Internet access and have slow take up. This is plain wrong; Skype will hurt the fixed line operators first. 3G operators in my opinion have around three years fairly clear breathing space. This is because people are willing to pay for seamless mobility - which works! Skype type services will only be a big threat to 3G operators when 4G/Qualcomm/Flarion/WiMax/mesh networks emerge. Luckily Tomi Ahonen picks up on this mistake which saves me typing! For those without a subscription to the Economist, then at least for now both articles can be found here.