AltiGen MAXCS 7.0 Update 1 ACM Administration - Manual (Page 384)

Chapter 29: Fax-over-IP Configuration
368 MaxCS 7.5 Administration Manual
Overview
MAXCS supports T.38 pass-through, which is a protocol for real-time fax transmission over IP networks. There
are three common scenarios for sending faxes to/from MAXCS.
One scenario is an On-premise installation of MAXCS with users sending faxes within the facility.
Figure 215. Example of internal fax configuration in an on-premise MaxCS deployment
In this scenario, faxes are connected to VoIP gateways via analog FXS. The gateways all connect to MaxCS
via network connections with T.38 pass-through.
Another scenario is an On-premise installation with users sending faxes to, and receiving faxes from, an
external fax machine outside of the organization.
In this scenario, the faxes connect to the VoIP gateway, which connects to MaxCS. MaxCS connects to a
router which sends faxes through (and receives faxes from) the cloud. The remote location will have a router
receiving the fax, sending it to the VoIP gateway which is connected to the target fax machine.