The problem is you have the older VCM voice compression modules rather than the HCM High Density compression modules. Only the HCM's support the h245 dtmf relay command , it's something to do with DSP horsepower. The VCM can only do cisco-rtp.
Please upgrade to ISR, we dont support that anymore.
Hello All ,
Finding the reason codes and their explanations for CTI is a bit difficult than for CCM .
First , let see how to decode the Reason codes you see from Event logs/SDI/SDL traces for CTI events .
When you are troublesho...