Callback

[lancelot]

Each time I request a callback, the calls are made but go straight to voicemail as if I blocked the number. If that is the case, I would like to unblock the number but need to know what number to unblock. Anybody experienced this? Does anyone know the number they are calling from? 

[FuzzyLogic]

There are various things that could block the call. If you have call control enabled you will need to check your settings and logs:

Call Control for mobile devices explained | TELUS Support

Block spam with Home Phone Call Control | TELUS Support

Additionally most cell phones have the ability to block calls from anyone not in your contacts.

Hopefully you can track down where this is happening.