Install Chan Dongle on Asterisk

I have 2 asterisk (FreePbx) servers up and running in 2 different locations connected with an iax2 trunk. I need help with the following: 1. Install and configure chan dongle for use with Huawei e1552 in one of the locations. 2. Dial plan between the 2 asterisk servers, depending on dialed number the call should be sent to correct dongle. I have a list with prefix that belongs to each operator. 3. Write a quick “how to” For adding additional dongles. 4. Install “open source” G.729 codec. [login to view URL]