Voice calls defective

[fuming1]

For two days now my phone won't connect voice calls.been up n down the knowledge then had chat with a guru called Sharon.

She said"it is our issue and we are working on it"...I need my phone for work.any time scale on issue resolution please?should I get another phone/network  or just wait and lose money...?

[MI5]

@fuming1 

Get another SIM on a different network if you're desperate for calls. 

It could take days or weeks to fix and there's no way of knowing how long.