Problems with DTMF tones
obi-master:
Having the same issue. Can Obi support comment on this
Kaizer:
Quote from: obi-master on May 06, 2011, 10:15:24 am
Having the same issue. Can Obi support comment on this
I incorporated RonR's suggestion and :
Service Providers -> ITSP Profile x -> General -> DTMFMethod -> InBand
If you are on auto provisioning, uncheck obitalk settings, uncheck default then change to InBand
Working so far.
ChrisThompson:
Unfortunately, this doesn't address the issue of DTMF tone issues when dialing out of the LINE port using **8 or #.
OBiSupport:
There are a couple of places where a DTMF tone can get lost or go undetected. Here are a couple things to try if you are having issues getting DTMF tones to a far-end peer (VoIP and/or PSTN).
1. Change the DTMF transmit method to in-band.
Service Providers > ITSP Profile X > General > DTMFMethod = InBand
2. Increase the audio gain setting for audio (DTMF) generated by the phone attached to the OBi PHONE port.
Physical Interfaces > PHONE Port > Port Settings > ChannelRxGain = 5
The "5" recommendation is arbitrary. Find a setting that works for your environment. Setting this too high could result in the OBi caller hearing their echo and/or the far end experiencing audio cut-out or the OBi caller being just too plain loud.
Note: Only applicable to DTMF tones when "InBand" signalling is invoked.
3. Increase the LINE port audio gain setting.
Physical Interfaces > LINE Port > Port Settings > ChannelTxGain = 5
Again, the "5" recommendation is arbitrary.
4. Increase the DTMF playback level on the LINE port.
This is for those cases where a call is being bridged from VoIP to the LINE port or the LINE port is the Primary Line to Call Out (or **8 is used to make a call from the OBi PHONE port or AA).
Physical Interfaces > LINE Port > Port Settings > DTMFPlaybackLevel = 0
The "0" recommendation is arbitrary.
Kaizer:
well i got ahead of myself. changing to inband resulted in cell phone calls to obi for 2 stage calling to break. AA does not recognize the DTMF (from sprint or verizon). so this:
Service Providers -> ITSP Profile x -> General -> X_UseFixedDurationRFC2833DTMF : (checked)
didn't help either.
I guess I'm left with only this option to play with?
2. Increase the audio gain setting for audio (DTMF) generated by the phone attached to the OBi PHONE port.
Physical Interfaces > PHONE Port > Port Settings > ChannelRxGain = 5
The "5" recommendation is arbitrary. Find a setting that works for your environment. Setting this too high could result in the OBi caller hearing their echo and/or the far end experiencing audio cut-out or the OBi caller being just too plain loud.
Note: Only applicable to DTMF tones when "InBand" signalling is invoked.
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