Technical Reference for ZyXEL omni.net series

Follow the guidelines in the table below designed to assist you in configuring the ISDN parameters of your ZyXEL omni.net ISDN TA.

Configuring ISDN Parameters

 

ISDN Parameter

 

 

Description

 

Outgoing Protocol

 

Sets the calling protocol for the your ZyXEL omni.net ISDN TA. The

Control

 

protocol selected should match the protocol in use by the device or

 

 

 

network your ISDN TA is calling. Selections are

 

 

 

[X.75/V.110/V.120/PPP].

 

 

 

Note: PPP is the most widely used protocol for Internet Access.

 

 

 

Multilink

 

Check the selection box if you want to combine 2 x B-channels to

 

 

 

increase the data transfer rate. This is called multilink.

Multiple Link

 

% Multiple Link with two independent B-Channels.

 

 

 

STAC or V.42bis

 

You can enable or disable data compression by checking or

Compression

 

unchecking the check box.

Data Rate

 

Click the 56Kbps or 64Kbps option button.

 

 

 

Call Bumping

 

Call Bumping configures your ISDN device to allow outgoing or

 

 

 

incoming analog calls while a Multilink connection is established.

 

 

 

If this box is checked when a handset is picked up on a POTS port, or

 

 

 

an incoming analog call is detected, the B-channel associated with this

 

 

 

call will disconnect from the ISDN data call and allow the analog call to

 

 

 

proceed.

 

 

 

Keep Connection Alive

 

Keep Connection Alive sets a timer that will send a dummy PPP

 

 

 

packet every 59 seconds to maintain the connection with the remote

 

 

 

device.

 

 

 

This is useful during long periods when there is no data transfer, but

 

 

 

you do not wish to be automatically disconnected by the remote

 

 

 

device.

 

 

 

Note: Do not set this option if you are charged by time usage, as this

 

 

 

can maintain the connection indefinitely until it is manually

 

 

 

disconnected.

 

 

 

Bandwidth-On- Demand

 

Bandwidth-On-Demand settings are used to control the adding and

 

 

 

removing of the 2nd link of a Multilink connection.

Table 3. Configuring ISDN Parameters

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