User manual

69
ISDN network interface (option)
In this section you can:
 Activate/deactivate:
• CLIR (Calling Line Identity Restriction): if enabled, system will not transmit its
number when establishing a call.
•
COLR (Connected Line Identity Restriction): if enabled, system will not transmit its
number while receiving a call.
 Activate or deactivate the
Downspeed function that is automatically called when one or more
lines are dropped during a call.
 Activate the
FALLBACK function in order to allow a phone call when the remote system is a
basic telephone.
 Enable/disable the
Bonding Recovery function in order to cope with a situation in which
network errors (such as network SLIP errors) occur during a bonding connection.
In a call, following messages could appear:
o Corrupted video received. Please wait...
o Video received Ok.
o Corrupted data received. Please wait...
o Data received Ok.
o Network error recovery: re-establishing call...
o Call established. Please wait...
o Down-speed, connection rate.
 Select the Euro or National Network.
• Activate or deactivate the 5ESS protocol (for National ISDN only).
• Select the 64K or 56K mode ((for National ISDN only).).
• Activate or deactivate the 1TR6 function (for Euro ISDN only, allows you to change the
protocol level 3 from ETS1 to 1TR6).
• Activate or deactivate the
QSIG protocol (for Euro ISDN only, ISDN signaling protocol).
 In the Access Configuration section select BRI or PRI and configure all the ISDN lines
you need.
It is advisable to disable any unused ISDN lines.
Changing from one kind of network to the another will require a system restart.