`PhoneBone` required

[phorward]

I need a PhoneBone, which accepts only valid phone numbers, including international ones.

Requirements:

• subclass of StringBone, type "str.phone" (likewise "str.email")
• Accept phone numbers of the format "0123 45678", "+49 123 45678", "+49-123-45678", "0049 123 45678" (maybe there's standard regex for this)
• Automatically correct phone-numbers without country prefix, so "0123" becomes "+49 123" (configurable)
• Can also be used for fax numbers (in Germany, this is currently a very important feature)

[sveneberth]

You could just use a NumericBone and <sl-range/>:

_{irony off}

[phorward]

1205 merged.