SIP Trunk
Short definition
SIP Trunk: A SIP trunk is an IP-based connection between a telephone system and a telecom operator that uses SIP signalling for external calls. It can replace or supplement traditional telephone circuits. SIP trunk services are provided by Stream Telecom.
Meaning and how it works
A business PBX establishes SIP sessions with the carrier, which routes inbound and outbound calls to the telephone network.
Business applications
- Business scenario:
A contact centre connects multiple public numbers to its existing PBX and handles several concurrent calls over the same IP connection.
What to check before implementation
Check concurrent call capacity, number formats, security, interoperability, bandwidth and failover arrangements.