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 ...

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 ...

From a carrier's perspective, the turn to packetized voice has been touted as providing voice calls “too cheap to meter,” irrespective of the distance between caller and call recipient. The advent of ...

I have a question for all you No Jitter readers: What is SIP used for? If you are like most people in the communications industry, you will tell me that SIP is used to make telephone calls. Some of ...

A new Barix SIP Zone Paging firmware update was announced at ISE 2018. The Session Initiation Protocol (SIP)-based based firmware update integrates audio and paging capabilities with IP-based ...

This is a user generated content for MyStory, a YourStory initiative to enable its community to contribute and have their voices heard. The views and writings here ...

To "prove" that ALG is off, target a host on a public IP with your SIP client, and run a packet capture there. In the "Contact: <sip:someuser@192.168.34.132>;expires=3600" line of the registration ...

Session Initiation Protocol, or SIP, has been hailed as the key to the convergence kingdom, the global signaling standard that will enable all switches, gateways and phones — hard and soft — to talk ...

Did Skype's total failure last holiday season get you worried? Are you tired of Skype's generally poor quality even at its free price-tag? Afraid of what Microsoft might do with Skype? According to ...

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 ...