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Problem

Generate ringback tone over ISDN lines for incoming calls.

Solution

hen customer having an issue where incoming calls from t1 pri are not being sent a ringback tone and if it is required that the Vega generates these progress tones on the TE ISDN interface, then at the CLI prompt type:

set _advanced.isdn.user_progress=1

Save and reboot Vega to activate the changes.


Notes:

1. If the Vega DSL is configured as NT it will always generate the call progress tones. E.g. ringback and disconnect tones.

2. Typically wait_for_connect and user_progress configuration parameters should either both set to 1 or both set to 0.

ftp://ftp.sangoma.com/vega/legacy/1-step-by-step-configuration/Base%20documents/Initial%20config%20-%20R6%20Vega%20100%20E1%20(SIP)_06.pdf