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 ...

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 ...

So our phone system people are trying to setup a SIP trunk on our Mitel 3300 unit. I open up firewall ports and setup 1:1 NAT for the PBX's IP, everything looks like it should be OK. They are telling ...

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 ...

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 ...

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 ...

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, ...

Epsilon, a privately owned global communications service provider, has announced Brightlink IP, a leading global IP communications provider, has joined the SIP Trunk Federation. The Federation ...

Session Initiation Protocol (SIP) will allow true interoperability, eventually enabling every IP-based device and application to communicate seamlessly with one another. This guide discusses some of ...

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 ...