Fax Line

Hi my faxmachine is connected to analog line 28771122 but my older fax line was 28773500 which is one of number from IDAP T1 line so what I did I forwarded 28773500 to 28771122 in extension.conf and when call comes to 28773500 its get routed to 26771122 but I am not able to receive fax properly it get distorted page.can some one help to dignose this issue

VoIP is generally not really friendly with receiving/sending fax.

read more here -> voip-info.org/wiki-Asterisk+fax