Specifications

Chapter 3 - Basic Configuration Administration Manual (SIP/MGCP Version)
AT-VP504E FXS 33
Placing a Call A call can be placed from a phone or fax connected to an AT-VP504E
FXS unit. The unit automatically detects if the call originates from a
voice transmission or fax transmission and acts accordingly.
When placing a call, the AT-VP504E FXS collects the DTMF digits
dialed and sends a message to the Registrar Server (for instance, the
IP Communication Server) or Call Agent. The Registrar Server or Call
Agent sends back a list of contacts where the dialed number could be
located.
For more information, please refer to the AT-VP504E FXS
User’s
Manual
.