Sim card rejected issue while in Huawei Ran

[mutley2202]

Hi All,
Hopefully someone has come across this before, Basically we are seeing issues with devices intermittantly showing sim card rejected in certain area's. The area's impacted are covered by Huawei RAN kit, We did have an issue similiar a while back which was present on devices from a certain brand which was resolved by an OS update on the devices from the manafacture. We are now seeing it across several brands but always in the same location, once outside of the location they are fine. It would appear its occuring while on 2G. Unfortunatly we are yet to catch any handset logs.

Any advice/expierence details or questions would be very much appreacited.

Thanks