Emmanuel Proulx is a SIP (Session Initiation Protocol) developer who has written an excellent tutorial on the signaling protocol that is widely used in VoIP to initiate communications sessions ...

Create SIPp XML scenarios online for free — no need to write raw XML! This free web tool lets you easily build SIP call flows and export valid XML files for use with SIPp, a popular SIP testing tool.

Broadvox releases call bursting for SIP Trunking, a new feature that increases calling flexibility and reduces costs. It provides call sessions beyond the amount purchased for peak calling times.

This paper examines the call set-up delay (CSD), a performance parameter that may be used in specifying, measuring, and comparing the speed of call set-up processing in networks that employ the ...