SIP trunking is the talk of the town today!
For a long time, we have been using ISDN for, voice, faxing, and high speed links to transfer multimedia. VoIP has changed all that and, now, SIP trunking is giving you all the features of ISDN and much more.
We compare the two in an easy to understand infographic here:
Contact ACC Telecom for a FREE Network Assessment to see if your network is ready for SIP Trunks!