These features relate to Third Party Registration
| Feature | What it does | 
|---|---|
| sets a session state field based on the presence of the “+g.3gpp.smsip” parameter in first party SIP Register request Contact headers and the subscriber MSISDN session state field. | |
| sends a MAP AnyTimeModification request to HLR to set the IP-SM-GW address and set active flag to true when a user registers. | |
| records registration requests in Cassandra to keep track of which site a user last registered at. | 
