Zones
Cisco TMS Administration Guide
Page 6 of 37
Zones
Zones enable Cisco TMS to use the correct international dialing codes when using ISDN between
countries (area codes within the same country), selecting which systems should use IP and which
should use ISDN, and insert the correct prefixes for IP systems when using an ISDN gateway.
Systems in the same IP zone will always connect on IP as default when they are booked via Cisco
TMS. If you always want to use ISDN between systems in a location, they should therefore not be part
of an IP zone. Also, systems that will never connect on ISDN (except through a gateway) should not
be part of an ISDN zone.
ISDN zones
To set up an ISDN zone, go to Administrative Tools > Locations > ISDN Zones, click New and fill in
the following fields:
ISDN Zone Name
Specify the name of the ISDN zone.
Country/Region
Choose the country this zone is situated in. This will let
Cisco TMS choose the correct country code and correct
international dialing prefixes.
Area Code
Specify the area code this zone is situated in. This will let
Cisco TMS choose the correct area code rules
To access an outside line for
local calls, dial
Insert the prefix needed to gain an outside line in this ISDN
zone
To access an outside line for
long distance calls, dial
Insert the prefix needed to gain an outside line for long
distance calls in this ISDN zone.
Note: If you use the same prefix to gain an outside line for
both local and long distance calls you should put the same
prefix here as you put in the previous field.
Number of digits to use for
internal ISDN calls
This specifies the number of digits used for internal dialing
within this zone. The leading digits will be stripped from the
number when dialing between systems in this ISDN zone.
Note: If Cisco TMS is generating the wrong numbers to dial when dialing local, domestic or
international calls, you should have a look at the ISDN zone settings and the phone number set on
the system.
Example:
A Swedish phone number in Stockholm would have a number layout like this:
Country code (+46); Area code (08); local number (12345678)
If dialing this number from within Stockholm they would only dial the local number: 12345678
If dialing from Gothenburg (within the country, but outside the area code) they would dial: 08
12345678
If dialing from outside Sweden they would dial: +46 8 12345678
As you see the 0 in front of 8 (in the area code) would have to be removed when dialing this number
from outside the country. This is therefore not looked upon as part of the area code, but rather a prefix
to dial between area codes.
The systems should only be configured with the local ISDN number: 12345678, but with the correct
area and country code in the ISDN Zone. If the system was wrongly configured with the local number
and the area code, Cisco TMS would wrongly configure the following as the international number for
the system: +46 8 0812345678
