User manual
Administrator Settings 
149 
Place this type of call by: 
  Set Network to ISDN 
  Set Bandwidth to 128 kbps 
  A field for the 2nd number pops up in Call Settings. 
  Enter the second number in the Call Settings field. For 128 kbps calls that use bonding, 
ignore the second number field and just enter one number to be dialed. 
Using sub-address / extension address / MCU password 
Sub-address is used to address different systems on the same ISDN line and is primarily used in 
European Countries. LAN equivalent extension address or TCS-4 is used to address different 
systems on a LAN, when dialing via a gateway. 
To specify an ISDN sub-address or its LAN equivalent extension address (TCS-4), add a star (*) 
after the number and then enter the sub-address/extension address. 
Example: 
12345678*10 ( <number>*<Sub-address/extension address/MCU password>) 
When dialing IP via a gateway, the number behind the star (*) on IP might be interpreted as an 
extension address. 
When calling to external MCU’s requiring a password (TSC-1), this password can be added after 
the star (*). If no password is specified, the user will be asked to enter the password (after 
connecting to the MCU). 










