coM.sat ISDN Basic User Manual

coM.sat ISDN Basic
created: page: file:
16/01/09 28 coMsat ISDN Basic Manual V2.7.doc
Note Protection Mark according to DIN 34!
3.3.4.1 Routing according to dialled number
The table “Routing Destination for Number Prefixes“ determines if GSM (with or
without provider) or ISDN (with or without provider) is to be used. Special cases also
require the setting of a routing for calls to the PBX (with or without provider).
Example:
Number Prefix Routing
017, 016, 015 GSM, ISDN
089 ISDN
0049 ISDN with Provider
ISDN
This table is parsed from top to bottom, comparing the prefix with the called number.
If the number’s first digits match the given prefix, the routing is evaluated. If “GSM” is
specified, a GSM channel is selected according to the “Net Access Numbers“
settings, optionally inserting a provider. If “ISDN” is specified, the call is routed to
PSTN, again allowing the insertion of a provider prefix, just like the specification of
“PBX” which causes a routing to the TC system. If more than one route ia specified
and the first one is not able to route to call, the second option is evaluated. If e.g.
“GSM,ISDN” is specified and there is no GSM channel available at the moment, the
call is routed to ISDN (“fallback”). If in this case only “GSM” would have been
specified, the call would be rejected.
The example above causes the following behaviour:
• All calls to typical (german) GSM numbers are routed via GSM if possible, and
via ISDN otherwise
• All calls to Munich (089) are routed via PSTN without provider prefix
• All other calls to german numbers (+49) are routed via PSTN with a provider
prefix
• All other calls are routed via PSTN without provider
In addition to numbers, the place holder “?“ can be used to specify any number. This
is especially useful if numbers can only be distinguished by their length. This applies
e.g. to internal MSNs and local area numbers. The following example assumes that
all internal MSNs are two digits long:
Number Prefix Routing
017, 016, 015 GSM
??? ISDN
?? PBX
This routing table works like this: All GSM numbers are routed via GSM. If any
number with only two digits is dialled, only the entry number 3 matches, because all
other entries require at least 3 digits. All numbers with more than two digits not
matching the first line are routed to the ISDN network.

coM.sat ISDN Basic Specifications

General

Brand	coM.sat
Model	ISDN Basic
Category	Network Router
Language	English