Service name MUST be from the set alphanumeric characters plus dash Per RFC 3261, the service indicator is case insensitive. Optional service instance identifier, separated by an equal sign. The service indicator is the concatenation of the service name and an Depending on the service indicator, the media server willĮither honor the request or return a failure response code.

The media server, upon receiving an INVITE, notes the service Require for each service is a matter of local policy. The media server MUST support the sips: scheme for theĭialog and conference services. Media server SHOULD support the sips: scheme for the announcement

The media server MAY issue 401 challenges for authentication. Issues with using a fixed set of user-space names.įor per-service security, the media server SHOULD use the security The section The User Part ( Section 7) discusses the Note that the set of services is small, well defined, and wellĬontained. Restrict the use of these user names at devices other than a With theĮxception of a conforming media server, these user names andĬonventions have no impact on the user part namespace. Media servers that chose to implement the convention. The user parts defined here only apply to multifunction SIP user agent, proxy, back-to-back user agent (B2BUA), or any futureĭevice. In particular, the user partĬonvention described here places absolutely no restrictions on any O The mechanism described in this document has absolutely no impact O This document has no impact on non-multifunction SIP-controlled O This document only applies to multifunction SIP-controlled media O Only devices that choose to conform to this standard have to The use of the user part of the SIP Request URI has a number of The left-hand-side of the URI, as a service indicator. The fact that the standard SIP URI has a user part. In the context of SIP control of media servers, we take advantage of 'RECOMMENDED', 'MAY', and 'OPTIONAL' found in this document. NOT', 'REQUIRED', 'SHALL', 'SHALL NOT', 'SHOULD', 'SHOULD NOT', Conventions Used in This Document RFC 2119 the interpretations for the key words 'MUST', 'MUST Interaction, specified, for example, by VoiceXML or MSCML. This can be a one-step interaction, for example by playingĪn announcement, 'Please enter your pass code', followed byĬollecting a string of digits. Information, as in an announcement, and then collects the user's Prompt and collect is where the server prompts the user for some Interested readers should read conferencing-įramework for details on the IETF SIP conferencing framework. Service does not address enhanced conferencing services, such asįloor control, gain control, muting, subconferences, etc. Simple mixing of media for a basic conferencing service. Note that the service described here suffices for Media mixing is the act of mixing different RTP streams, as described Generated in real-time, multimedia objects, or combinations of the Static media files, media files generated in real-time, media streams SIP Request URI, or does it put any restrictions, in any way, onĭevices that do not implement this convention.Īnnouncements are media played to the user. In no way modifies the SIP protocol, the meaning, or definition of a It is critically important to note that the mechanism described here Of session the client is requesting, without modifying the SIP

This documentĭescribes how to identify to a multifunction media server what sort Using server protocols such as SIP, often in conjunction with markup Multifunction media servers provide network media services to clients Moreover, given their elemental nature, one would not These services are basic in nature, are few in number, andįundamentally have not changed in 25 years of enhanced telephony Prompting and collecting information with a user. Such services include playingĪnnouncements, initiating a media mixing session (conference), and In SIP-based media networks ( RFC 3261 ), there is a need to Formal Syntax for Prompt and Collect Service. RFC 4240 SIP Media Services December 2005ġ. Services to SIP-based networks, and Media Servers, which provide the Interface between Application Servers, which provide application This document describes a mechanism for providing an interoperable Offering these building blocks (also known as Media Servers) andĪpplication developers, one needs to be able to locate and invoke In order to have interoperability between servers These services are basicīuilding blocks, from which one can construct interestingĪpplications. Such services include network announcements, user In SIP-based networks, there is a need to provide basic network media Distribution of thisĬopyright (C) The Internet Society (2005). Not specify an Internet standard of any kind. This memo provides information for the Internet community. RFC 4240: Basic Network Media Services with SIP Įrrata Exist Network Working Group E.

Sip play