LONDON--(BUSINESS WIRE)--Data Connection Limited (DCL), the world's leading independent provider of communications protocol software, announced today its participation in SIPit 19, the nineteenth SIP ...

For two codecs to successfully communicate via SIP through a SIP server, information must be exchanged between the two devices. Codecs manufactured by members of the Audio-via-IP Experts Group are SIP ...

While setting up a SIP phone at home, I noticed something surprising - most SIP providers don't seem to offer any kind of encryption on the connection; both voice ...

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 ...