Reference Guide for the Model RT210/RT211 ISDN Routers
C-4 Ordering ISDN Lines
National ISDN service packages determine what combination of features your telephone company
provides on your ISDN line.
A package typically consists of the following:
• The combination of voice and data capabilities required on the B channels
When used with NETGEAR or other Bay products, both B channels should be provisioned so
that they can carry data. Some phone companies insist that at least one of the B channels also
be capable of carrying voice traffic. For example, you might order a line with one B channel
provisioned for data and the other B channel for alternate voice and data. If you intend to use a
router with the optional analog module (for use with a phone, modem, or fax machine), then
you need at least one B channel capable of carrying voice traffic.
• If appropriate, information as to whether the D channel is capable of carrying X.25-type
packet data in addition to call setup and signaling information
This capability is not used by the NETGEAR routers.
• The number of directory numbers required
We recommend that NETGEAR or other Bay Networks products have only one directory
number per ISDN line, although two are required on a Northern Telecom switch.
• Additional features required
Features vary depending on your telephone company. However, some common features that
you might want are:
— Caller ID
This feature is sometimes known as calling party number delivery. One of the more
powerful security features of the router is the use of caller ID to check the origin of
incoming calls. NETGEAR recommends that you order Caller ID if it is available in your
area. The feature you need might also be referred to by the telephone company as calling
party or billing number deliver. This feature is different from the one known as Individual
Caller Line Identification Display (ICLID). ICLID provides caller identification
information in a human-readable format for ISDN telephones with display panels. It is not
used by your NETGEAR router.
— Call waiting
This feature is sometimes known as additional call offering.
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