A key piece of the popular open source communication software gets an update. Making major changes to core functionality in an existing software project can be daunting. Making those changes in a ...

If I have an Asterisk server running behind a firewall, and I want to add phones outside of the firewall, is it just as simple as forwarding the appropriate ports on the firewall to the Asterisk ...

Barrett Lyon has created a don't miss resource that shows you how to configure P2P SIP URI (Uniform Resource Identifier) dialing on your Asterisk-based PBX. "There are thousands of people that operate ...

Last year, I took a trip to Asia. To stay in touch, I carried a GSM world phone, capable of receiving telephone calls in the countries I was visiting. The capability to receive calls with the same ...

For all the technology behind Voice over IP (VoIP), you'd expect that it would work on every network, but this unfortunately isn't the case. Network Address Translation (NAT) is a common practice used ...

Some organizations consider taking the plunge off PBX platforms into IP telephony as being pretty daring, but that’s nothing compared to what Sam Houston State University (SHSU) is doing. The south ...