Sorry to hijack this thread, but you’re asking the same question …
I can’t use a Digium card because my Asterisk server doesn’t have any PCI slots (it uses SBus instead). Also I don’t think my DSL modem is new enough to know about QoS, so I’m considering upgrading the modem instead of buying an ATA.
I’ve been looking around various companies web sites to find which ATAs/DSL modems can act as an FXO as well as FXS, but the information is difficult to find. Many of them say their FXS has PSTN lifeline, and some of them think that means FXO but I need true FXO “i.e. incoming PSTN calls get routed to Asterisk”
I’ve noticed that Zoom do a 2800 ATA which says it can route PSTN to VoIP but the reviews say it answers the PSTN before routing the call (not very good if you’re at home when the phone rings, but not near the PC with softphone. I’d like it to ring the Analog phone simultaneous to routing to Asterisk). Zoom don’t specify if their X5v will route PSTN to VoIP and I haven’t got an answer from them on this.
Please can anyone tell me which ATAs or ADSL modems with builtin ATA can act as a proper FXO?