GL Communications Inc., a global provider of voice testing solutions, announces significant enhancements to its SIP testing platform, enabling high-load, secure and automated generation of voice, ...

Viking Electronics, a designer and manufacturer of communication and security products, releases the SR-IP, a Voice-over-IP SIP loud ringer and visual indication device, complete with four traditional ...

Tieline Technology said it recently joined eight other codec manufacturers in Munich to test IP interoperability successfully using Session Initiation Protocol (SIP) to connect according to EBU ...

The resurgence of interest in VoIP to provide telephone services worldwide is often credited to the use of session initiation protocol (SIP) for signaling. Both residential and enterprise VoIP ...

Session Initiation Protocol (SIP) is a control (signaling) protocol developed by the Internet Engineering Task Force (IETF) to manage interactive multimedia IP sessions including IP telephony, ...

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 ...

Inter-Tel later this month is expected to announce a Linux-based IP PBX with multimedia support, presence and other advanced communications features that could help users perform their jobs more ...

Even many IT professionals haven't heard of the Session Initiation Protocol (SIP), so it's almost certain your users haven't. However, unless you're using an entirely proprietary Voice-over-IP (VoIP) ...

In a deployment scenario for SIP-based VoIP devices, it is necessary for standardization in the security protocols, mechanisms and other parameters to use or to have the capability of negotiating a ...

In Part 1 of our SIP primer, I covered the SIP foundation layers starting from the message structure and ending with the SIP transactions. We saw how phone registrations and proxies could work using ...