Hi TAC84,
Can you give me detail step about downgrade firmware for avaya J179 from H323 6.8.x to 6.7.x version ?
I have tried work two ways.
1.Changing from H323 6.8.4 to SIP 4.0.5 and return to H323 6.7.1-->but error. (H323 6.8.6 -->SIP 4.0.5 ---> H323 6.7.1)
2.Changing directly from H323 6.8.4...
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