If you have an existing PBX system but are looking to reduce your telecommunications bill, you may be interested in a service known as SIP trunking. SIP trunking connects a Voice-over-IP (VOIP) telecommunications service directly to an on-premise technology system, thereby granting many organizations the best of both worlds. Here are some advantages.
You Don't Need to Invest in Additional On-Premise Equipment
Your PBX system will connect your internal system to the Internet.