The only complaint I have, is that Ascom has a very narrow view of how the system should be used. They do not support using ring groups with the analog gateway. Instead, they want you to have a dedicated FXO port for every Dect phone on the system. That makes sense if you want your cordless phones to look like they are on the phone system you marry the Ascom system to, but that's not always going to be the case. I'm trying to deal with Ascom tech support on other issues, but they always come back to things like my ring groups, even though it has no bearing on the problems we're having. Another example: The AA50 GUI has an option to put custom caller ID on incoming calls. This would be helpful in my case, because we do have two different lines that ring through to the same phone, and there is no caller ID coming in. The GUI does not save the changes, and making the changes manually also doesn't seem to take. When I ask tech support about this the reply is "Why would you want to do that?"

So I'm happy with the equipment, but I'm not thrilled with the support. The AA50 from Digium seems to be a weak point. If I have another site that wants this system, I will spend some time looking at what Aastra has, seeing as it's all really the same thing.