- Firmware version:
- Model: MyPBX-Series, TA-FXS Gateway
TA3200 Port 21 connects with a door phone system. And the port 21 registered as MyPBX-U510 extension. When SIP phone call to TA3200 port 21 extension number, and then press the DTMF key: **12345* will hear the door phone system IVR prompt. But the client feedback that it doesn’t work after press the **12345*, and hear a deep prompt instead of the door phone IVR prompt.
The DTMF key with “*”, it might conflict with the MyPBX feature code. And the TA3200 FXS port monitor file showing that the last one “*” delay for 9 seconds.
And the system log also showing that the last one “*” delay for 9 seconds, it was the issue.
Now we need to confirm it is a delay on MyPBX-U510 or delay on TA gateway or both delay.
From the SIP packet it shows the DTMF key delay from MyPBX-U510 to TA for 4 seconds. So we can know, TA to Port also delay too.
Customize the MyPBX-U510 and TA-3200 feature.conf file changed the feature “featuredigittimeout” from 4000ms to 2000ms which is acceptable for the user. Note that the impact would affect all feature codes timeout.
For TA, you would need customize the features.conf by following this guide: User Defined Configuration Modification
The content in the custom config file is:
featuredigittimeout = 2000