User`s manual

MediaPack SIP User’s Manual 8. Telephony Capabilities
Version 4.6 189 June 2005
8.11.4 Remote IP Extension between FXO and FXS
This application explains how to implement remote extension via IP, using 8-port FXO and 8-port
FXS MediaPack gateways. In this configuration, PBX incoming calls are routed to the ‘Remote
Extension’ via the FXO and FXS gateways.
Requirements:
• One FXO MediaPack gateway
• One FXS MediaPack gateway
• Analog phones (POTS)
• PBX – one or more PBX loop start lines
• LAN.
Connect the FXO MediaPack ports directly to the PBX lines as shown in the diagram below:
Figure
8-2: MediaPack FXS & FXO Remote IP Extension
8.11.4.1 Dialing from Remote Extension
(Phone connected to FXS)
¾ To configure the call, take these 6 steps:
1. Lift the handset to hear the dial tone coming from PBX, as if the phone was connected
directly to PBX.
2. FXS and FXO MediaPack gateways establish a voice path connection from the phone to the
PBX immediately the phone handset is raised.
3. Dial the destination number (the DTMF digits are sent, over IP, directly to the PBX).
4. All tones heard are generated from the PBX (such as Ringback, busy or fast busy tones).
5. There is one-to-one mapping between FXS ports and PBX lines.
6. The call is disconnected when the phone connected to the FXS goes onhook.