The "SMS-Register-Request" AVP
The "SMS-Register-Request" Diameter AVP, which is of type Enumerated, is defined by 3GPP (vendor ID 10415) and uses the AVP code "1648".
It has the MAY-ENCRYPT flag.
It is part of the 3GPP-Update-Location-Request command.
It is an enumerated AVP, which can hold the following values:
| Name | Integer value |
|---|---|
| SMS_REGISTRATION_REQUIRED | 0 |
| SMS_REGISTRATION_NOT_PREFERRED | 1 |
| NO_PREFERENCE | 2 |
| Update source | Insertion date |
|---|---|
| Wireshark | 2026-04-26 07:13 |