- jmp.chat phone number, shared between spouses as a “family number” either of us can answer at home or away from phone.
- Cell2Jack device that converts bluetooth phone call into landline phone
- Cortelco 2500 telephone
Video with sound here. Video was taken of Android phone Cheogram app, but I will instead use this setup with Raspberry Pi 4 + Waydroid/Lineage OS and Cheogram app in the coming days.
Yes, you can answer and dial out from the telephone instead of device for integrated phone apps like Cheogram. For Signal, I have to tap answer on device but can pick up telephone to continue the audio call.
Can't a setup like this also be achieved without a Bluetooth phone and by using a VoIP service like voip.ms ?
Sure, there are other ways to go about getting more or less the same functionality. I love hearing other ideas.
jmp.chat is an open source VoIP provider. The telephone itself, a Cortelco 2500 telephone, is not bluetooth nor VoIP. I love the classic physical gong ringer. The telephone connects to the Cell2Jack adapter via a standard telephone cable (6P2C/RJ11). The Cell2Jack itself has the bluetooth. What's cool is I can also use the telephone speaker as a one-ear "headphone" device for any and all media I play on my device if I change the setting on Cell2Jack.
Oh ok I get it now, so basically the fixed phone is used as a controller for your regular phone. That makes more sense actually, I tought when reading your post that is was some kind of phone that stays in a cabinet near by. But if its basically a bluetooth speaker/microphone that you can decide to use to pick up the phone instead of using your smartphone, then I love the idea!!