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.
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.