Problems with DTMF tones
RonR:
Quote from: haiml on May 18, 2011, 05:20:25 pm
try this to test DTMF:
http://www.testcall.com/222-1111.html
If you have iNum calling configured, they also have a number that repeats your DTMF digits back : 883510000000092
azrobert:
My DTMF problem was on SP1/GV and started after installing Build 2283. DTMF tones work perfectly on SP2/SipSorcery with the default settings.
Changing "ITSP Profile A/General/DTMFMethod=InBand" seemed to fix the problem until today when I called my cell phone number to listen to a voice message. My cell phone provider failed to recognize any DTMF tones.
Changing "Phone Port/DTMRxMode=Software" fixed the problem with my cell phone.
It seems OBiHai's quality control is lacking. They should do no harm when providing a firmware upgrade.
slk23:
"Phone Port/DTMRxMode=Software" fixed the problem for me too. I'm using a regular phone and not a cell phone. It was working fine before the firmware update.
Quote from: azrobert on May 21, 2011, 12:56:22 pm
My DTMF problem was on SP1/GV and started after installing Build 2283. DTMF tones work perfectly on SP2/SipSorcery with the default settings.
Changing "ITSP Profile A/General/DTMFMethod=InBand" seemed to fix the problem until today when I called my cell phone number to listen to a voice message. My cell phone provider failed to recognize any DTMF tones.
Changing "Phone Port/DTMRxMode=Software" fixed the problem with my cell phone.
It seems OBiHai's quality control is lacking. They should do no harm when providing a firmware upgrade.
zoomin:
Quote from: OBiSupport on May 06, 2011, 02:58:23 pm
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.
I'm having troubles dialing out on my land line (AT&T).
Only rarely a call goes through. Most of the times, I get a message from AT&T "Your call cannot be completed at this time."
I have the latest firmware and a unit reset to factory defaults. I did try to tinker with the settings suggested above, but still cannot get it to work consistently.
Is there anything that I can do to fine tune it? Any way to make DTMF tones longer? They seem to be too short compared to what my phone is putting out.
Thanks!
RonR:
Quote from: zoomin on June 04, 2011, 04:36:23 pm
Any way to make DTMF tones longer? They seem to be too short compared to what my phone is putting out.
Physical Interfaces -> Line Port -> DialDigitOnTime
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