How do you test SIP implementations?
Roughly every four months, the SIP interoperability test events (SIPit) sponsored by the SIP Forum offer opportunities for implementors to test interoperability with other implementations. The SIP call...
View ArticleWhat is the difference between stateless proxy and Redirect server?
Same difference as between a DNS server that works in an iterative mode (Redirect), and one that works in a recursive mode (Proxy). Iterative mode means a response is being returned right away whether...
View ArticleWhy not unify RTSP and SIP?
RTSP is the IETF-standardized protocol for controlling streaming media servers. RTSP and SIP share a number of common functions. For example, both establish sessions and use SDP to describe sessions....
View ArticleWhen will SIP for presence be standardized?
The technical work on SIP for presence was completed more than a year ago. However, the specification has normative dependencies on PIDF, which in turn depends on another Internet Draft,...
View ArticleWhat is SIP?
SIP stands for Session Initiation Protocol. SIP is an Internet proposed standard documented in RFC 3261 for setting up, controlling and tearing down sessions in the Internet. Sessions include, but are...
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