How to change fax parameters when FoIP installed?

Nov 30, 2023

When you have FoIP Addon installed, we set the required parameters by default from the scripts. The parameters are as below.

t38_passthru=true
fax_enable_t38_request=true
fax_use_ecm=false
fax_v17_disabled=false
fax_disable_v17=true
fax_enable_t38=true
fax_transfer_rate=9600 (For inbound)

If you want to change the above parameters for specific gateway/carrier then you will need to override them from gateway module.

Step-by-step guide

Visit Carriers → Gateways → Dialplan Variables (Field)
Set the parameters like key1=value1,key2=value2 format. Example:

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