SIP Trunking: Consolidating Voice and Data Networks
A SIP trunk is a direct connection between a business and an IP Telephony Service Provider that enables customers to extend VoIP calls to the PSTN beyond their internal private voice network boundary without the need for an on-premise IP-PBX gateway. It eliminates the need for ISDN PRIs and BRIs connections, and includes multiple voice channels – as many as you want.