Hi Everybody, Good day to you :) I am trying to configure Asterisk for overlapdial=yes in zapata.conf however in the extensions.conf, when specifying ${CALLINGSUBADDR} it still isnt able to parse the digits through to asterisk. What I am trying to do is have Asterisk read the digits which are being keyed in by a mobile phone when the user dials into the system. For example the user stores 123456789 in their mobile phone for dialing whereby 123 is the number of our PRI and 456789 is the number to be called through H323. Any idea what I may be doing wrong here? Here are my configuration file settings specified: extensions.conf exten => s,1,Answer exten => s,2,Dial(H323/${CALLINGSUBADDR}@203.208.246.139/) zapata.conf usecallerid=yes hidecallerid=no immediate=yes overlapdial=yes I have also tried commenting out immediate=yes but that does not help. Many thanks