1. Nahk786's Avatar
    Can I enable VoLTE on my RM-1075-1004 Microsoft Lumia 640 LTE Dual SIM by choosing the Developers Mode available in Settings>Update & Security>For developers ?
    02-26-2017 09:58 AM
  2. libra89's Avatar
    Can I enable VoLTE on my RM-1075-1004 Microsoft Lumia 640 LTE Dual SIM by choosing the Developers Mode available in Settings>Update & Security>For developers ?
    If I'm not mistaken, your carrier has to be able to support VoLTE for that phone.
    02-26-2017 08:11 PM

Similar Threads

  1. Why can't iPhone 5 users receive photos from my Lumia 640 xl?
    By Windows Central Question in forum Ask a Question
    Replies: 2
    Last Post: 02-25-2017, 10:17 PM
  2. I lose mobile data connection on 640 xl
    By Windows Central Question in forum Ask a Question
    Replies: 1
    Last Post: 02-25-2017, 09:40 PM
  3. did the 640 stopped receiving updates
    By amitz_r in forum Windows Phones
    Replies: 6
    Last Post: 02-25-2017, 04:04 AM
  4. i bought a microsoft lumia 640 from a person online
    By Windows Central Question in forum Ask a Question
    Replies: 5
    Last Post: 02-23-2017, 08:30 PM
  5. yahoo mail problem in nokia lumia 640
    By Windows Central Question in forum Ask a Question
    Replies: 1
    Last Post: 02-23-2017, 09:00 AM
LINK TO POST COPIED TO CLIPBOARD