Allied Telesis AT-VP504E FXS (H.323) - Manual (Page 11)

Chapter 1 - Making Calls with the AT-VP504E FXS User’s Manual (H.323 Version)
AT-VP504E FXS 7
Phone/Fax -> AT-VP504E FXS -> LAN H.323 endpoint
A user makes a call with the phone/fax connected to an AT-VP504E FXS,
which reaches the corresponding LAN H.323 endpoint on the IP network.
LAN H.323 endpoint -> AT-VP504E FXS -> Phone/Fax
A LAN H.323 endpoint contacts the AT-VP504E FXS, which reaches the
corresponding phone/fax connected to the AT-VP504E FXS terminal.
IP / LAN
Telephone Telephone
AT-VP504E FXS AT-VP504E FXS
Fax Fax
Gatekeeper
IP phone
Soft Phone
H.323 Endpoint
IP / LAN
Telephone Telephone
AT-VP504E FXS AT-VP504E FXS
Fax Fax
Gatekeeper
IP phone
Soft Phone
H.323 Endpoint