What is RFC 3261?

Rosenberg, et. al. Standards Track [Page 137] RFC 3261 SIP: Session Initiation Protocol June 2002 17.2.3 Matching Requests to Server Transactions When a request is received from the network by the server, it has to be matched to an existing transaction. This is accomplished in the following manner.

What is Max-Forwards in RFC 3261?

RFC 3261 SIP: Session Initiation Protocol June 2002 8.1.1.6 Max-Forwards The Max-Forwards header field serves to limit the number of hops a request can transit on the way to its destination. It consists of an integer that is decremented by one at each hop.

When is the header field required in RFC 3261 SIP?

RFC 3261 SIP: Session Initiation Protocol June 2002 *: The header field is required if the message body is not empty. See Sections 20.14, 20.15 and 7.4 for details. -: The header field is not applicable.

Why is there no from tag in RFC 2543?

This is to maintain backwards compatibility with RFC 2543, which did not mandate From tags.

What is the difference between CPIC and RFC?

SAP Uses CPIC (Common Programming Interface for Communication) Protocol to transfer data between Systems. It is SAP Specific protocol. Remote Function Call (RFC) is a communications interface based on CPI-C, but with more functions and easier for application programmers to use

Is the analysis of work process in “on hold” RFC or stopped CPIC?

2180934 ‘Analysis of Work process in “On Hold” RFC, or Stopped CPIC status’. DIA or BGD work process remains in Status “On Hold” with Reason “RFC” in transaction SM50, or Status “Stopped” with Reason “CPIC” in transaction SM66.

What is the difference between RFC 2543 and 2617?

Instead, the mutual authentication procedures of RFC 2617 are allowed. o A UA cannot send a BYE for a call until it has received an ACK for the initial INVITE. This was allowed in RFC 2543 but leads to a potential race condition. o A UA or proxy cannot send CANCEL for a transaction until it gets a provisional response for the request.