Remote Configuration of the System Telephones
Proceed as follows:
Using the Configuration Manager (Administration > Remote configuration)
Remote switching number
Requirements:
external numbers have been entered
The system telephone remote switching number is used to set up an external ISDN connection using the COMfortel Set configuration software.
*Note: You cannot use call forwarding to divert this phone number.
*Note: You must select the DDI number to be sent for a PTP connection from the extensions block. If the DDI number is then displayed in red text, either it is not in the value range, or the maximum number of external phone numbers has already been entered.