SIP stands for “Session Initiation Protocol”. This is basically an application layer protocol for establishing, modifying and terminating VoIP sessions over network. Our SIP Trunking service gives you access to the PSTN and connects your company’s telephony to our Nationwide network.
SIP is also a reliable protocol that can run over TCP or UDP, along with offering you a welcome alternative to expensive and outdated ISDN.
Think SIP, think Voip Unlimited.