09-12-2018 09:26 AM - edited 09-12-2018 09:51 AM
This is not just a phone code bug. We have two ISR 4300s One is a 4351 running Everest 16.6.3. The other is a 4331 running 15.5(3)S4b.
The DTMF failure with FAC only happens on the ISR with the NEWER code.
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