Entering the source line 'USER' is not visible in the screenshot. Using this filter, the route will only be in effect for calls that originate from a local user. The destination line 'RESTART' prompts a new pass through the call routing table, whereby the source line is deleted. Due to the missing source line, the route does not match this call during the second pass.
- As a result of both of these routes, any stars '*' that might have
preceded the numbers are removed before each call from a local user. For all other calls
from local users, the number is preceded with a '0', as it is automatically assumed that
the user is trying to establish an outside connection.
The other routes are used to carry out international and national long distance calls as well as local calls as standard over the ISDN line. The Call Router removes the preceding zeros from the number again and sends the call out to the ISDN line. In order to channel calls to special destinations, such as international and national long distance calls, over the SIP provider and not over ISDN, double-click on the corresponding entry in the table and switch the line used form 'ISDN' to 'SIPPROVIDER'. Don't forget to switch the backup line from SIP to ISDN, if necessary!
Note: This call routing table is only valid for PBX systems that forward the special character star '*' for internal calls on their external ISDN bus. If the PBX processes this character in a different manner, then the table must be adapted accordingly.