when I get a incoming ring via dahdi (E1 or IDSN), the first 0 and 00 is striped away.
017212345 ringing on dahdi --> 17212345 is ringing
This is not a Problem, because I can add a 0 to the callerid(num).
But when an international call is coming
004124212345 ringing on dahdi --> 4124212345 is ringing
The length is from 9 to 15 digits … not possible to assign a logic.
My providers (Telekom for ISDN and Vodafone for E1/S2M) are sending 0… and 00… in the incoming callerid.
Where can I stop the sriping the first 0 / 00??