Charges for unanswered calls

[Glenn256]

Can you explain to me why I am being charged 2.00 GBP for every call I receive that I do not answer.  I work in Jordan and am receiving calls from telemarketers that I am not answering but am being charged for.  One of these calls was registered as lasting for 00:00:06 as it's duration.

[Bambino]

@Glenn256 Sounds like your unanswered calls are being picked up by your voicemail, which you should have turned off before you left the UK to avoid the charges you're receiving: 

https://community.o2.co.uk/t5/Other-Products-and-Services/All-you-need-to-know-about-O2-Voicemail-90...

[Glenn256]

I've worked in the middle east for almost ten years.  Have had the same UK phone number and only these last two months have I started being charged like this.

[Enlli]

As per @Bambino 

Calls diverted back to voicemail are classed as an outgoing call whether a message is left or not.

It's been that way since the beginning of roaming and applies to all networks 

[MI5]

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@Glenn256 wrote:

I've worked in the middle east for almost ten years.  Have had the same UK phone number and only these last two months have I started being charged like this.

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Something must have changed in the last 2 months then @Glenn256 

Have you changed tariffs, phone or anything else that might be relevant?