First of all, I want to thank all Elastix staff for your great job, i'm using elastix for the last 5 months ans its fantastic. And now to th fix. If u are using an OpenVox (or may be a TDM) with FXO and FXS ports I found that if u include in /etc/asterisk/zapata.conf #include zapata_additional.conf #include zapata-channels.conf in this order u have no audio in the FXOs. To fixit u must include then in this order #include zapata-channels.conf #include zapata_additional.conf and ur FXOs will work like a charm. I must also thanks to ramoncio cause i found this thanks to all his posts.