[hpad06]

Just got Lumia 710 2 days ago, and upgraded it in Zune to the latest, and now I notice when I call from iphone 4s, it does not show the caller's number. However if I call from other cell phone or primus voip, it's fine.

I have tried to swap the sim cards between Lumia 710 and iphone 4s, I still have the exact the same issue, so I am sure it's something to do with the phone not carrier.

Anyone has the same issue? Any fix ?

[john32]

Have you checked if the number/name is duplicated in your people/contacts?

[hpad06]

The problem is number not showing up, it just says unknown number.

I also tried adding a contact for that number, however still showing unknown number.

For me, it only happens when I call from my iphone 4s to lumia 710

[Superzar · Accepted solution]

My 710 diplayed 'Unknown' for about 80% of all calls (non-4S included). A call to my carrier (Rogers) revealed that this was a known issue with 710.  There was a temporary fix however.  They disabled 'name display' in their end, and bingo call display now works with anyone who calls me!

[hpad06]

thanks, I am also with Rogers, will call Rogers to do this temp fix.

[hpad06]

Yes, this temp fix solve my problem.

[fanqi1234]

Thank you VERY much Superzar,

I have this "Unknown Number" problem and the Rogers techincal support couldn't find anything wrong (He didn't even know if Nokia Lumia 710 supports call display feature) but I found your post and asked him to turn off "Name Display" --> which he spent 3 minutes finding out the difference between Call Display, Who Called, and Name Display...

But this fix works! Thank you again!

[Pvrveyor]

Thanks. It worked.

[Fredou]

Requested the same from Fido (Canada) and it also worked (after the few hours required for the settings to propagate in the network).