top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

Local breakout is configured and VPLMN flag is enabled in HSS, still some subscribers using Home PGW for IMS APN.

0 votes
1,691 views

Some In-Roamers are seen using visited PLMN’s MME, SGW but they are still using home PGW even though static selection of SGW & PGW are configured in MME for all roaming MCC+MNC. That mean any visitor will Locally break out and use specific SGW & PGW for IMS and Internet APN. But few subscribers seen using their home PLMN PGW for IMS APN. What are the scenarios that can trigger the visitor to use their home PGW. Once purged from MME then subscriber start using visited network’s SGW and PGW, which is an expected behaviour. Also these few random subscribers have switched off and switched on their device and also hover between VoWiFi / Volte during their stay multiple times still the PGW used is their home PGW.
Please help to understand and decode this scenario.

posted Aug 17, 2022 by Sunil Khandelwal
Looking for an answer?  Promote on:
Facebook Share Button Twitter Share Button LinkedIn Share Button

Your answer

Preview

Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.
Similar Questions
+3 votes

Is it possible HSS belongs to home network and S-CSCF belongs to visited network for the Cx interface ? If not then why ?

+3 votes

How does PGW assign P-CSCF address for an UE during attach time ? Is there any consideration of UE's current location in the network or something else ? Is there any load balancing for P-CSCF ? If yes, then how it is done ?

+1 vote

Which of the network node initiates dedicated bearer creation for the VoLTE call ?

+4 votes

Sometimes due to coverage hole issue in the LTE network, the ongoing VoLTE is continued to UE by using the CS network like GSM network. This is known as SRVCC (Single Radio Voice Call continuity). What messages are exchanged between network nodes when UE moves from LTE to GSM ?

...