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.
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
Over the last few months, I have had the privilege of working on SI...
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...