SIP Trunking
Reliable connectivity for your onsite phone system
SIP, short for Session Initiation Protocol, is an application layer protocol that lets you run your phone system over an internet connection instead of traditional phone lines.
SIP trunking is a service that allows companies to connect their onsite IP PBX (Phone system) to the Internet Telephony Service Provider (ITSP) and use its services; inbound phone numbers and outbound call termination. It is effectively a replacement of old PSTN phone lines. A SIP Trunk service can be used via public internet as well as via private IP.
What kind of services can be enabled through SIP trunking and unified communications? Well, the sky is pretty much the limit, but here are a few: ✓ Audio and video conferencing ✓ Audio recording ✓ Presence (determining the availability and communications preferences of a user on the network) ✓ Instant messaging (IM) ✓ Online collaboration (whiteboarding).