I am setting up an IP phone system for an office with 20 people. Can anyone recommend a reliable SIP trunk provider? We have a Grandstream UCM6208 PBX. Most calls made will be international. I am ...

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 ...

An organization that provides voice over IP (VoIP) service and enables calling from SIP phones to plain-old-telephone (POTS) lines and vice versa. SIP is the universal protocol used for Internet ...

Singapore Telecommunications has lent its weight to an emerging Internet telephony standard. The Singapore-based carrier on Monday announced a collaboration with Session Initiated Protocol (SIP) ...

Ranked ahead of Twilio, Inteliquent and IntelePeer, Bandwidth's market momentum was rated as the strongest across the top 10 providers along with an above-average financial score RALEIGH, N.C., Aug.

Avaya is the latest maker of Internet phone equipment that believes it can succeed where Yahoo and Microsoft have struggled: selling instant messaging that's good enough for the business world. The ...

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As carriers increasingly incentivize their customers to migrate away from copper TDM-based services through significant price increases or abrupt sunset notices, we've seen client activity increase as ...

The SIP Survey recently published its eighth-annual SIP and Cloud survey, and as I looked over the data I expected the results to demonstrate a decrease in provider problems -- my expectation being ...

In this chapter, we start putting into practice some of the SIP concepts learned so far. We will show some very simple programming examples that illustrate how SIP works. As was stated in previous ...