I have cisco 2821 with
EVM-HD-8FXS/DID High density voice/fax extension module with 8FXS/DID
EM-HDA-3FXS/4FXO 7-port voice/fax expansion module-3FXS/4FXO
Obviously Fax will be connect with FXS port and Nortel PBX will connect with FXO and Leased line I will use to connect with remote Central Site CCM.
I have one confusion how my fax machine send fax to outside world.
Please help me out. What will be the configuration on Router.