I have some customer who complains about the quality of the calls on the FXO.
- Static Sound
- Echo Sound
We try everything…PSNT detection…fxo tunning…same result.
When i try with Sip trunk line…no probleme , the quality is good.
The probleme is that some client is under contract with other phone compagny ( very expensive to broke the contract ) or no internet bandwidth.
I read in other forum, that the FXO Gateway like * GXW4104 * can solve the problem ( the hardware is more solide than the UCM ).
What do you think ?