The "Subscription-Id" AVP

The "Subscription-Id" Diameter AVP, which is of type Grouped, uses the AVP code "443".

It has the MANDATORY flag, the MAY-ENCRYPT flag.

It is part of the Credit-Control-Request, Trigger-Establishment-Request, Non-Aggregated-RUCI-Report-Request, Modify-Uecontext‑Request, Diameter-EAP-Answer, AA-Answer, AA-Request, Re-Auth-Request, Spending-Limit-Request, TDF-Session-Request commands.

It is part of the Non-3GPP-User-Data, Monitoring-Event-Report-Data, WLAN-User-Data, Service-Information grouped AVPs.

It is part of the Diameter Credit Control Application application.

It is defined in the Diameter Credit Control Application specification.

It is a grouped AVP, which can hold the following nested AVPs:

< Subscription-Id > ::= < AVP-Header: 443 > 
* [ Subscription-Id-Data ]
* [ Subscription-Id-Type ]