In some rare instances virtualfax can fail to answer a fax destination with CNG tones (Resolved).
In some rare instances virtualfax can fail to answer a fax destination with CNG tones.
Operating Systems effected are CentOS 7 and Rocky 8
This issue is resolved by updating to scopserv-telephony25-7.52.11.0.20240612-1 and restarting the Virtual Modem service with the telephony service manager.