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 ...

Some devices even use things like STUN servers to determine their NAT situation and public IPs. 2 layers of NAT is usually a death knell for SIP, especially if you have 2 consumer level NAT devices ...

SIP (Session Initiation Protocol) continues to gain traction among hardware and software vendors in the VoIP (voice over IP) industry. This week Codima Technologies, designers of network management ...

Session Initiation Protocol is a signaling protocol used for initiating, maintaining, and terminating real-time sessions that include voice, video and messaging applications. UBIT welcomes the ...

H.323, the ITU's umbrella standard for audio, video and data-sharing over packet (IP) networks, is already widely deployed and has significant market share. SIP, the IETF's multimedia signaling ...

How To Set Up Free SIP Calling On Any Device Your email has been sent Most people communicating on the internet are using SIP calling. Here’s how to make free SIP calls — and when you shouldn’t.

LONDON — Nortel is collaborating with SIPquest, a leading developer of Session Initiation Protocol (SIP) based IP telephony software applications, to develop applications that will allow operators to ...