[asterisk-users] cdr,gsm file format

[Sriram]

Hi

1. What is the best way to convert wav (44000 Khz) to gsm format for 
asterisk ? I;ve tried sox command but the outcome is not satisfying...The 
built-in gsm files shipped with asterisk are simply superb ..How do i create 
gsm files of similar quality ? Can anyone help me out ? if sox is the only 
way can anyone tell me the exact command ?

2. Can Freepbx 2.5 installed above asterisk 1.6.0 or trunk versions ? in 
short does it support dahdi ?

3. If i cannot use Freepbx 2.5 where will the CDRs get stored and how i 
access them for writing my custom cdr program ? i saw that there is a cdr.so 
module that gets loaded - can it help me in anyway

Thanks in advance

Sriram
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