Hi Ralph, following your suggestions I tried a few things and managed to find a solution. I have been trying to force tone dialing of a precise 5 digit long distance code (03230) right after the outbound number is dialed.
Since my outbound call leading digit is 9, I created a ARS digits dialed 95551, 10 digits to follow, terminate to route 13.
Created route 13, same trunk and COR as my regular outbound call route. Digit modification number 7. No digits before outpulsing, compression or PBX number element ID.
Created Digit Modification Plan 7. 4 digits to absorb (9555). No digits to be inserted, since I want the digits to be dialed after the number, not before. I can't insert digits in Final Tone Plan/Information Marker field, I can only add a Tone Plan Number or a System Account Code.
As you suggested, I created two Tone Detection Plans 3 and 4 for Outpulses default and Gives answer. No members in the plans. Then I added <T03><T04> in the digit mod plan. When I make a call, I have a busy tone and ERROR written on my phone's screen.
Then I created a Default Account Code, index 10, number 03230. I modified T03 from Outpulse default to Outpulse DTMF, and added a 5 second wait. I changed my digit mod plan to <T03><A10>. So when I make an outbound call starting with 95551, I have a 5 second wait for the long distance code prompt, then the code is entered automatically.
It's a dirty trick, but if it works, it works
Thank you for your support, you definitely put me on the right track to solve my problem
Have a nice day