"In our recent SIP Trunking Strategies survey of North American enterprises, 43 percent of respondents said they are using SIP trunks in some capacity, although they are not completely displacing PSTN connections," says Diane Myers, Infonetics directing analyst for VoIP and IMS.
"All indications show that as businesses upgrade their voice infrastructure, they are making the move to SIP trunking, which will continue to drive growth of enterprise SBCs," says Myers.
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