SIP trunking is a cost-effective option for modernizing legacy phone systems with minimal disruption. Discover the best SIP trunking providers and how to choose one in our complete buyer’s guide.
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What Is SIP Trunking?

Session initiation protocol (SIP) trunking allows any organization to upgrade its offline PBX to an internet-powered business phone system. Business leaders are using this technology to harness VoIP’s ...
This type of billing is quite common in the data world with Internet and MPLS services, so with VoIP/SIP, it is a natural migration. 20% of the phone bill, is the phone bill. Getting rid of the phone ...
SIP trunking is popular, cost effective, and it has beneficial features compared to T1 and PRI access. Large numbers of SIP installations continue to take place year after year from many different ...