I can't make call while I on roaming.

[bristolian]

More questions than answers here...

Does your phone show mobile network coverage? Have you been able to make calls abroad from this phone previously? Can this phone send & receive texts? What happens when you try making a call?

"I can't make calls abroad" is an FAQ on this forum, and there's several pieces of standard advice may well apply. But some basic info is needed first, as per the above questions.

[XRaySpeX]

Are you on contract or PAYG? Had you used that SIM for making calls or texts in UK before you left to go abroad?

If you are on contract, did you activate roaming on your EE a/c before you left UK by texting ROAMING to 150? Having a roaming billing add-on doesn't of itself activate roaming on your a/c. Having roaming activated on your EE a/c, not just on your device, is crucial to using your contract SIM abroad.

Often just rebooting the phone is the simple remedy. Also try selecting a network manually rather than auto.

Otherwise you need to call CS to get your roaming activated. Try calling CS on the Freephone no. in my sig. on Skype over WiFi. It should be free.

[Thamor1]

Yes.

[XRaySpeX]

1 'Yes'. many Qs!

[bristolian]

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@Thamor1 wrote:

Yes.

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Yes to what? This is a classic case of "you can't provide too much info" but can easily provide too little. Which question are you answering yes to? And what about the other questions?

[Thamor1]

I still can't make a call  when I on roaming. 

[Thamor1]

I am in Thailand. But  can't make a call when I used roaming. 

[XRaySpeX]

@Thamor1 : You've already stated that in your OP but you've not answered 1 of @bristolian 's Qs. What's the point of repeating yourself? If you want help you need to help us help you.

[Thamor1]

Does your phone show mobile network coverage? Yes.

Have you been able to make calls abroad from this phone previously? Yes.

Can this phone send & receive texts? Only received.