Delay on sms delivery

[ChristopherAlbertini]

Dear All,

We are currenly facing lot of delay on SMS delivery.
By running a trace on SMSC, we are getting the following error ReturnError Invoke forward, sent by the MSC.

Can anyone help to find the root cause of the issue?

Br
CA

[orcun_laing]

Please check a parameter setting for long SMS if it's enable or not. If your network has lots of long SMS and the parameter is not enabled, it will cause delay to other SMS as MSC will take longer time to process the SMS. I'm not sure this will apply to your case.