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ITU-T H.248.39

Gateway control protocol: ITU-T H.248 SDP parameter identification and wildcarding

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Organization: ITU-T
Publication Date: 1 October 2014
Status: active
Page Count: 42
scope:

This Recommendation describes the principles to be used to identify a single session description protocol (SDP) sub-field and how to apply wildcarding to that sub-field. The sub-field may be fully specified, wildcarded (CHOOSE "$" or ALL "*") or not significant "-" (see clause 5.2.2.2). Being able to identify a single sub-field is of use when requesting the MG to choose a parameter, specifying a range or for the purposes of auditing.

This Recommendation contains a package that allows a media gateway controller (MGC) to request multiple SDP parameter values and/or multiple SDP lines to be returned in response to a CHOOSE request. It also allows the linking of multiple CHOOSE wildcards so that they return the same value. A new "maintain value" wildcard, "~", is introduced, which is a short notation syntax (versus the fully specified SDP information) that allows performance optimization as well as the reduction of syntax errors (by avoiding the repetition of redundant information)

Document History

ITU-T H.248.39
October 1, 2014
Gateway control protocol: ITU-T H.248 SDP parameter identification and wildcarding
This Recommendation describes the principles to be used to identify a single session description protocol (SDP) sub-field and how to apply wildcarding to that sub-field. The sub-field may be fully...
May 1, 2006
Gateway Control Protocol: H.248 SDP parameter identification and wildcarding
A description is not available for this item.

References

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