I’m trying to get info from a supplier and they are insistent that a trunk is a 1 to 1 with a call. Now I am 99.999% sure he's wrong, but before I tell him so I wanted to make sure someone who knows ...

Caller-ID is an effective tool that can be used with a dialing plan; providing what callers want before you even answer the call is cool. Last week I discussed Caller-ID Spoofing: Legislation as a ...

In our latest installment, see how carriers and vendors responded to Lisa's inquiries on a few key topics. Many No Jitter readers continue to express interest in information exchanged during sessions ...

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 ...

TDM trunks have long served to connect corporate PBXs to the public switched telephone network (PSTN). But with more companies moving to VoIP, SIP trunking has become an increasingly popular ...