Delay between moving / creating users in Teams Tenant and when they can start using their phone

Hello everyone. I have a question regarding delays. 

I am moving my Skype users to Teams (and also creating new users) and I'm faced with two issues. I'm unsure if these issues are unique to me or it's a global thing.

1) When I create the user it seems that there is a huge (I mean almost 2 day) delay before the phone number is usable. Both internally (Teams to Teams) and externally (calling my extension from my cell phone) I think it's a delay because the latter seems to work for certain people but not others. Some people can call my extension and it arrives as a call and others simply get the message "I cannot find this user in the directory"

2) When I either migrate or create a new user it sometimes can take up to 1 week before I see my number pad in Teams. It eventually arrives, but I think it's abnormal.

Is there something I can do to speed this up? Is it a Microsoft issue? Is it an issue where I am not putting it the correct commands to properly push propagation?

Thanks!