Support for multiple numbers & devices

[gisturbance]

Having multiple phones with multiple SIM cards in each can be a burden. The ability to link and use multiple phones would be very useful.

With that in mind I would suggest, when

• calling a contact, let the user choose the SIM to call with, or either use
  • the last SIM the contact was called with
  • the SIM corresponding to the phone the contact is stored in
• in a call, allow to add other contacts to the call, if supported by the phone (VoIP/VoLTE?)
• viewing the contacts
  • display them in a list or grid, either
  • on one single page
  • in a tabination (per phone)
  • order them grouped by their respecting phones or vCard groups
• managing contacts, allow to transfer them between phones

Grouping by vCard groups is something I have never seen anywhere before, I wonder why.

Looking forward to the first release! For a long, long time I'm hoping for such a project to arise!

[BestOwl]

Thank you for the suggestions.

1. I am not sure if multiple SIM card is supported by Hands-Free Profile, will check it in the future.
2. Since we are using WinRT API to make phone calls, this is not possible unless we implement a custom Bluetooth profile driver. So this feature will not be included in v1.x
3. Can you give an example of vCard group? I don't know what it is.
4. This is very nice, it will be added to v1.x

[gisturbance]

This is a vCard contact:

BEGIN:VCARD
VERSION:4.0
N:Doe;John;;Dr.;
FN:Dr. John Doe
TEL;TYPE=home,voice;VALUE=uri:tel:+01-234-56789
EMAIL:john@doe.com
UID:urn:uuid:{{JOHN_DOE_UID}}
END:VCARD

This is a vCard group:

BEGIN:VCARD
N:Friends
FN:Friends
KIND:group
MEMBER:urn:uuid:{{JOHN_DOE_UID}}
MEMBER:urn:uuid:{{ANOTHER_MEMBER_UID}}
MEMBER:urn:uuid:{{ANOTHER_MEMBER_UID}}
UID:urn:uuid:{{GROUP_UID}}
END:VCARD

[RokeJulianLockhart]

@gisturbance and @BestOwl, https://www.rfc-editor.org/rfc/rfc6350#:~:text=The%20group%20construct,values%20as%20normal.