PRI is the technology that came before SIP trunking, and many improvements have come with SIP trunking.

Upgrading to SIP Trunking: What You Need to Know

Decisions about communications technology often leave businesses flooded with acronyms and a great deal of confusion about how each type of system functions for business purposes. Two acronyms that come…
SIP trunking allows for significant cost savings over traditional PBX systems.

What You Need to Know About SIP Trunking

SIP trunking offers cost savings over traditional private branch exchange (PBX) phone systems. SIP trunking allows you to send rich media messages, with calls, screen shares, and video chats all…