We have not found a Thomson router where the SIP ALG works correctly. The SIP ALG, therefore, must be disabled on all Thomson routers.
From the CLI :connection appconfig application=SIP SIP_ALG=disabled
To disable SIP ALG on Technicolor/Thompson modem/router, Telnet into the device and type the following:
connection unbind application=SIP port=5060 (Then press “Enter”)
save all (Press “Enter”)
exit (Press “Enter”)
The default username is admin and there is no default password (i.e. - leave it blank)