Posts Tagged 'DID'

SIP Trunking

ESI (our manufacturer of choice for business phone systems) announced recently that ESI has achieved interoperability with Broadvox GO! SIP trunking.  SIP trunking, for those who may not know, is a relatively new type of dialtone that is delivered via an IP network by an ITSP, or Internet Telephony Service Provider.  It’s far more efficient than Plain Old Telephone Service, and it appears to be where dialtone technology is headed.  Like ISDN PRI, it offers both DID ...

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