- Bronze, 100 points or more
I've been work in Japan.
The ISDN switch type, configured by "isdn switch-type" command, in Japan is just "ntt" for BRI or "primary-ntt" for PRI.
Now we are going to install routers on some countries, however I can see many kinds of ISDN switch type for countries/region outside Japan.
According to the URL below:
Capabilities of Typical ISDN Switches
This document show me "The Telco should explicitly indicate the switchtype that needs to be configured".
Is that true ?
That is, The Telco always informs us the ISDN switch type which we are going to connect ?
If the Telco informs us it, then we can follow the following information to configure the ISDN switch type.
Occasionally (especially in North America) the Telco may indicate the switchtype is "custom" or "national". In such cases, use the following guidelines to determine the switchtype configuration:
Custom: If the Telco indicates that their switch-type is Custom, then configure the switch type on the router as basic-5ess (for BRI with 5ess switch), primary-5ess (for PRI with 5ess), basic-dms (for BRI with DMS switch), or primary-dms (for PRI with DMS).
National: switch type conforming to the NI-1 standard for BRI and NI-2 standard for PRI (there is no NI-1 standard for PRIs) . If the Telco informs you that the switch type is National, then the Cisco router configuration should be basic-ni (for BRI) or primary-ni (for PRI).
Or if the Telco does not always or never inform us it, how do you determine the ISDN switch type configured on the router ?