A question in regards to Signals Descriptor Replacement

Hi, all

I got one question in regards to Signals Descriptor Replacement.

According to H.248.1 v3:
A new Signals Descriptor replaces any existing Signals Descriptor. Any
signals applied to the termination not in the replacement descriptor shall
be stopped, and new signals are applied, except as follows....

My question is :
If the new Signals Descriptor could not be applied due to any possible
problems inside MGW(unidentified new Signals Descriptor/uncapable to apply
new Signals Descriptor ...) , what would happen? Will the old Signals
Descriptor be stoped as well?


Thanks

Candice  ZTE






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