SIP Trunking at 45% in North America
About 45 percent of North American respondents use Session Initiation Protocol (SIP) today for a portion of their voice connectivity requirements, a survey conducted by IHS finds.
By 2017, the number of enterprises using SIP should rise to 62 percent.
Though businesses are migrating to SIP trunking, few have done a full cutover. Of those surveyed who already use SIP trunking, SIP represents about 50 percent of voice trunk capacity.
“SIP trunking’s been around for a while, but our survey shows inertia on the part of businesses tied up with existing contracts and services is inhibiting growth,” said Diane Myers, IHS research director.
The supplier market is fragmented and no single provider dominates. SIP trunking connections also are currently dominated by native support on the PBX rather than edge equipment such as enterprise session border controllers (SBCs) or gateways