Quote Originally Posted by Eric Seaberg View Post
Got it to work from the iPhone, but it seems I can't use both the Grandstream and iPhone at the same time since one or the other can only be logged in at one time, right? When I register the iPhone on VoIPo's network, my home line stops working.

Let me re-phrase that… I've got iPhone and home line setup and call our number from my wife's cell phone. I'm expecting BOTH my iPhone and our home wireless phones to ring, but only the iPhone rings. The home line doesn't ring UNTIL I 'unregister' my SIP account in Bria. I can make outgoing calls from either phone, however, even two different calls at the same time.

Is it really an either/or situation for incoming?
Are you are a BYOD customer for your Grandstream or is it provided by VOIPO?

If it is provided by VIOPO I would suggest you open a ticket with support. I have a Grandstream 702 provided by VOIPO and my iPhone is configured with Bria. I can receive calls on both devices. If incoming called picked up at iPhone, home phone will stop ringing and vise versa. Though I prefer not to receive calls on iPhone so I turned incoming off. But it work as said earlier when incoming turned on.

If you own your Grandstream device and configured by yourself that could be the reason as you are sharing your SIP credential on both devices and it may not be allowed. I am not sure about this. Together you can register unto 4 devices at the same time, if I remember correctly. That includes two lines registered by VOIPO adapter plus two more devices of your choice.