SIP Trunks combine all the ways businesses communicate with each other and their customers–voice calls, email, text, and chat–for a flexible, easy-to-use, and affordable unified communication ...

A voice over IP (VoIP) call path. One SIP trunk supports one phone call. See SIP trunking and VoIP. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

An organization that provides voice over IP (VoIP) service and enables calling from SIP phones to plain-old-telephone (POTS) lines and vice versa. SIP is the universal protocol used for Internet ...