Not all sessions and applications are equal, and the network can only do so much with QoS and call admission control; a new architecture is needed. Current communications architectures based on ...

Just what is SIP trunking? Let’s take it one part at a time. SIP refers to Session Initiation Protocol, the standard developed in the 1990s by the Internet Engineering Task Force that is used to set ...

A new twist is survivability features that ensure connectivity during the period of cutover from TDM to SIP trunks. As demonstrated by the overflowing audiences at this last Spring VoiceCon, SIP ...

Session Initiation Protocol (SIP) is a signaling protocol that is used to set up, modify, and terminate a session between two endpoints. SIP can be used to set up a two-party call, a multi-party call, ...

Last time I gave a high level overview of SIP and also took a look at SIP network element types. This time, I’ll be looking at SIP message and method types, and describing how SIP network elements ...

The Third Generation Partnership Project (3GPP), which is responsible for the standardization of the third-generation mobile networks, has designated the session initiation protocol (SIP) as the call ...