An Overview Of The SIP Trunk Definition And What It Takes To Sell
YoungUpstarts
JULY 13, 2020
The traditional Public Switched Telephone Network (PSTN), with its Analog lines, E1 ISDN BRI, or T1 lines, has begun to be replaced by IP telephone systems. Now, they buy a SIP trunk from an Internet Telephone Service Provider (ITSP), and it gets connected to a VoIP/IP PBX. In 2017 the SIP market size was $6.88 Compatibility.
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