885 and 822 Clear Codes

[kema2103]

Hi does any one has experience with


885 MGW Internal Failure clear code
NSN description of 885 is The MGW sends an H.248 error code, which indicates that an internal software or hardware failure has been detected in the MGW.

What could be main reason for this clear code any hints on it?

and

822 Recovery on Timer Expiry clear code, this is mapped from the ISUP 66 Recovery on Timer Expiry.

what is causing this clear code and what solution for this clear code could be?

thanks for yours help on this 2 topics.