Dial pattern ad #1# to dial string

Hi,

I have almost given up getting chan_mobile to work and want to use my cheap bluetooth PSTN box. To do so I have to do #1#dialednumber#.

I tried 9|#1#9.# but that did not work, please give me a hint:)

Thank you!

Best regards
HB

Setup | Trunk | Trunk Name | Outbound Dial Prefix