Hello, I would like to know if anyone could tell me some of the pros and cons from using a external FXO adapter (such as the Linksys spa400 or Grandstream GXW-4104) compared to using an internal FXO adapter such as a digium or other company's card. The price ranges seem to be the same or maybe a bit cheaper for the external devices. The setup I am looking into is for 2-3 FXO line system.
External seems to have some benefits such as easy installation, easier redundancy (for having a separate server configured if a main one goes down). Are there any drawbacks in terms of sound quality, configuration or feature support? Some setup options we would like to have are: -the ability to register/display multiple lines from the IP phones -the ability to answer a call from call waiting, or if there is a cost-effective way to set something up with Bell that a second call to a number could come to another incoming line and be answered by the IVR Any information is greatly appreciated. Regards, Steven
