Patent ID: 9736661
Date: 2017-08-15
CPC Classifications: H04L,H04W

Claim:
1. One or more non-transitory computer-readable media having stored thereon computer executable instructions for programming a device associated with a subscriber database of a telecommunications network to perform operations comprising: receiving a Send Routing Information for Short Message (SRI-SM) message from a messaging center; determining whether a user device specified by the SRI-SM message is associated with an active Internet Protocol (IP) Multimedia Subsystem (IMS) registration based at least in part on a first setting, the first setting indicating whether the user device is not associated with an IMS registration based at least in part on a threshold amount of time passing since a most recent IMS registration; in response to determining that the user device is associated with an active IMS registration: in response to determining that the user device is not associated with an active IMS registration: