Re:

[daveonfire]

Hi

Sorry to revive this chat but I am new to EE and has been experiencing this same issue. I am inable to ring my friend's Vodafone number. I get the message: "you've dialed an incorrect number". Vodafone can't seem to pinpoint the issue and says their end seem fine.

[Leanne_T]

Hi @daveonfire

Welcome to our community.

This would definitely need to be looked at by our technical team, have you had a chance to speak to them on 150 yet?

Leanne. 

[daveonfire]

So the problem kinda seems to be with the other phone provider and not exactly EE. Although the real issue is a corrupted database while porting the phone details from another provider. I was told there is an article on OFCOM that relates to this.