Hello thiagosc,
please check your dialing tree.
If you only have to increase the number of digits change it for DDO with <max-length> = 9
ASEXTN : <TREE>,<NUMBER>,<TRFC>,<MIN-LENGTH>,<MAX-LENGTH>,<DIALTONE-PLACE>[,[<TARIFF-CLASS>][,<PAUSE-PLACE>,<INTERVAL>]];
I think more details are usefull for more support.
I wish success
Best regards from Germany
wernergo