Covid 19 Update: Given the current global situation, we have paused the delivery of our LiveOnsite courses, but our LiveOnline and OnlineAnytime Packages remain unaffected. Browse over 50 online courses in our course catalogue, or get in touch to register your interest in future LiveOnsite courses when we are able to safely resume in person training.

SGsAP - SGs Application Protocol

SGsAP is designed to facilitate mobility management and paging procedures on the SGs interface, as part of CSFB (Circuit Switched Fallback) operation. In addition, SGsAP permits the transfer of SMS delivery via the circuit switched core network when IP based messaging services are not available. Key capabilities of SGsAP include: Paging for non-EPS services, Location Updates for non EPS services, alerting procedures, IMSI detach from EPS services, Mobility Management procedures and failure conditions.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

Explore NetX today with a
free trial.
More Info about NetX