PASS '+1 555 010 0001'
PASS '555-010-0002'
PASS '+44 20 7946 0958'
FAIL '(555) 123-4567'
FAIL '(555)1234567'
PASS '555.123.4567'
PASS '5551234567'
PASS '+1 (555) 123-4567'
PASS '020 7946 0958'
PASS '12345'
FAIL '1234'
FAIL '+1 555 010 0001 ext 22'
FAIL 'tel: +15550100 001'
PASS '555 123 4567'
PASS '+91 98765 43210'
PASS '1-800-555-0199'
PASS '07555 123 456'
PASS '966 55 123 4567'