Switzerland-based O-FONE (not to be confused with Microsoft’s oPhone) has released a SIP VoIP client for Symbian’s S60 platform. Perhaps more interesting than the client itself is their claim that ...

In our last VoIP installment, we looked at the main reasons why SIP has become a widely adopted protocol, but we left details of the protocol’s inner workings fairly vague. This article will drill ...

We are becoming less and less dependent on mobile networks. You can get a data signal almost everywhere that you can get a mobile signal and most of us are around WiFi most of the time anyway.

While many carriers offer centralized SIP, how they account for sessions across your enterprise and the terms they use are not consistent across the industry. Every year we speak with many potential ...

Got an iPod touch? And some audio input hardware? Want to make some VoIP calls? If you answered yes to all of the above, you'll want to check out the Touchmods site later tonight, when they'll ...

The Interactive Connectivity Establishment (ICE) draft, developed by the IETF’s MMUSIC working group, provides a framework to unify the various NAT traversal techniques. This enables SIP-based VoIP ...