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Download QR code; Print/export Download as PDF; ... The SIP response codes and corresponding reason phrases were initially defined in RFC 3261. [1] That RFC also ...
RFC 3261: INVITE: Initiate a dialog for establishing a call. The request is sent by a user agent client to a user agent server. When sent during an established dialog (reinvite) it modifies the sessions, for example placing a call on hold. RFC 3261: ACK: Confirm that an entity has received a final response to an INVITE request. RFC 3261: BYE
RFC 3261 SHA hash functions: RFC 3174, RFC 4634 Simple Authentication and Security Layer: RFC 2222, RFC 4422 Simple Mail Transfer Protocol, Internet Message Format: RFC 196, RFC 772, RFC 821, RFC 822, RFC 2821, RFC 2822, RFC 5321, RFC 5322 Simple Network Management Protocol: RFC 1067, RFC 1098, RFC 1157 (v.1), RFC 1441 (v.2) RFC 2570 (v.3)
A SIP address is written in user@domain.tld format in a similar fashion to an email address.An address like: sip:1-999-123-4567@voip-provider.example.net. instructs a SIP client to use the NAPTR and SRV schemes to look up the SIP server associated with the DNS name voip-provider.example.net and connect to that server.
Download as PDF; Printable version; ... (SIP) (RFC 3261) and the Session Description ... RFC 5194 "Framework for real-time text over IP using the Session Initiation ...
These two extensions allow users to specify their preferences about the service the IMS provides. With the caller preferences extension, [8] the calling party is able to indicate the kind of user agent they want to reach (e.g. whether it is fixed or mobile, a voicemail or a human, personal or for business, which services it is capable to provide, or which methods it supports) and how to search ...
A B2BUA maintains complete state for the calls it handles. Each side of a B2BUA operates as a standard SIP user agent network element as specified in RFC 3261. In addition to call management, a B2BUA may provide billing services, internetworking for protocol conversions, and hiding of network-internal topology and information.
The query returns a result set of NAPTR records, as per RFC 3403. In the example above, the response is an address that can be reached in the Internet using the VoIP protocol SIP per RFC 3261. The terminal application now sets up a communication link, and the call is routed via the Internet.