7.2.117 Number-Of-Participants AVP

32.2993GPPCharging managementDiameter charging applicationsRelease 17Telecommunication managementTS

The Number-Of-Participants AVP (AVP code 885) is of type Unsigned32 and holds the number of invited parties of the multi-party session when included in the initial charging request message, e.g. in PoC, CONFerence and SIMPLE IM. When included in interim / update charging messages, it indicates the number of parties who are currently attached in the session at the time the interim / update messages are sent.

NOTE: The information to populate this field may be obtained from the TBCP-Talk-Burst-Grant message in PoC case. The information to populate this field may be obtained from the Diameter Accounting Request message in MMTel CONF Charging.