Applicability
- Firmware version:
- Model: MyPBX-Series, TA-FXS Gateway
Problem Description
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.
Analysis
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.
01:56:59 *
01:57:00 *
01:57:00 1
01:57:01 2
01:57:01 3
01:57:02 4
01:57:02 5
01:57:11 *
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.
Solution
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 U-Series:
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:
[general]
featuredigittimeout = 2000
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