Asterisk Dial Options

The Asterisk Dial Options are defined in two fields:

  • Asterisk Outbound Trunk Dial Options (for outgoing external calls)
  • Asterisk Dial Options (for other types of calls)

The system wide settings for these options are defined in the Advanced Settings page under the Dialplan and Operational section. The values set should be appropriate for the majority of usage in the system to reduce the need to override them. The default system wide values on the UCx system are:

  • Outbound Trunk Dial Options = Tt
  • Asterisk Dial Options. = Ttr

The system wide values can be overriden in two places by checking the Override box beside the field:

  • In the Trunk configuration page you can override the values for Asterisk Outbound Trunk Dial Options
  • In the Extension configuration page you can override the values for Asterisk Dial Options

Checking the Override box clears the default system wide value and makes the field editable. Make sure the desired options are entered in the field. If left blank, call features like Call Park that require the Blind Transfer capability will not work.

Option Description
D(called:calling) Send the specified digits after the called party has answered, but before the call gets bridged. The 'called' digits are sent to the called party, and the 'calling' digits are sent to the calling party. Both arguments can be used alone. 
h Allow the called party to hang up by using the In-Call Asterisk Disconnect code (default value is **)
H Allow the calling party to hang up by using the In-Call Asterisk Disconnect code (default value is **)
i Any forwarding requests that may be received on this dial attempt will be ignored.
I Any connected line update requests or any redirecting party update requests that may be received on this dial attempt will be ignored.
r Generate ringing to the calling party, even if the called party is not actually ringing. Pass no audio to the calling party until the called channel has answered.
S(x) Hang up the call x seconds after the called party has answered the call.
t Allow the called party to transfer the calling party by using the In-Call Asterisk Blind Transfer code (default value is ##)
T Allow the calling party to transfer the called party by using the  In-Call Asterisk Blind Transfer code (default value is ##)
w Allow the called party to enable recording of the call by using the  In-Call Asterisk Toggle Call Recording code (default value is *1) 
W Allow the calling party to enable recording of the call by using the  In-Call Asterisk Toggle Call Recording code (default value is *1)