Validate, format, and convert Israeli phone numbers between local and international (+972) formats. Use when user asks to validate Israeli phone number, format phone for SMS or WhatsApp, convert to +972, check phone prefix, or implement Israeli phone input validation in code. Handles mobile (050-058), landline (02-09), non-geographic / VoIP (072-077, 079), toll-free (1-800), and star-service numbers, and emits strict E.164 output for libphonenumber and WhatsApp Business API. Do NOT use for non-Israeli phone systems or general telecom questions.
