Requiring telephone number for USA only

[HeathenMagic]

Helllo all,
I am in the UK, and to send to USA it has been for a while a telephone number is required. Though like most, its not required for everywhere elese, so its not forced. But there is a mention of requirement on create account.
Though sometimes it is overlooked, most people understand and send us contact number for us to add to customs. Though like today, one just said cancel order despite saying it most likely won't be used by USPS, but they force it on postage creation.
Is there some way to alter code to force telephone number for only USA customers? I guess it might be tricky as all fields are populated in one go, and no ajax / jscript calls inline. I did try to search forum but could not find anybody else wanting this. The issue is when we cancel order, we lost all the fees associated from the payment people now. Thanks in advance.

[mprough]

Helllo all,
I am in the UK, and to send to USA it has been for a while a telephone number is required. Though like most, its not required for everywhere elese, so its not forced. But there is a mention of requirement on create account.
Though sometimes it is overlooked, most people understand and send us contact number for us to add to customs. Though like today, one just said cancel order despite saying it most likely won't be used by USPS, but they force it on postage creation.
Is there some way to alter code to force telephone number for only USA customers? I guess it might be tricky as all fields are populated in one go, and no ajax / jscript calls inline. I did try to search forum but could not find anybody else wanting this. The issue is when we cancel order, we lost all the fees associated from the payment people now. Thanks in advance.

Might be easier to create a usa only delivery phone field that checks the shipping zone in checkout. Maybe even an OT module could be used.