Survey points to steady migration towards SIP trunking applications

A new survey by research company, Infonetics, has revealed that adoption of SIP trunking among US companies has continued to grow at a partial, evolutionary pace, rather than in a revolutionary fashion.

According to the survey, even those companies which had recently incorporated SIP trunking within their phone network systems were still relying at least in part on traditional public switched telephone network (PSTN) trunking connections.

The survey looked at the recent purchasing and systems administration decisions undertaken by 109 senior business phone systems managers. The survey found that SIP (session initiation protocol) trunking had been adopted by over 43% of those company representatives surveyed, but that this had not yet led to a complete abandonment of PSTN connections.

The survey revealed that the need to introduce business VoIP (voice over internet protocol) was one of the main reasons behind the respondents’ decision to incorporate SIP trunking into their existing business phone systems; SIP trunking remains one of the most straightforward ways for businesses to adapt their existing phone networks in order to handle internet-based services such as business VoIP or internet protocol (IP) telephony.

Other reasons behind the adoption of SIP trunking included the ease with the technology allows businesses to upgrade their phone systems; and the increased flexibility it affords companies when adding or switching phone extensions.

A further related finding by Infonetics has revealed that worldwide take-up of SIP trunking increased by 220% in 2010; whilst revenue from the sales of enterprise session border controllers (SBCs) – devices that provide a gateway for SIP-enabled communications – increased by 42% in the same year.

In spite of this growth in SIP trunking applications however, Infonetics has predicted that the evolutionary process of SIP trunking adoption means that traditional PSTN connections will continue to dominate trunking within business phone systems until at least 2013.