Output only. The phone number in <a href="https://community.sinch.com/t5/Glossary/E-164/ta-p/7537\" target="_blank">E.164 format with leading +.
+
Output only. The phone number in <a href="https://community.sinch.com/t5/Glossary/E-164/ta-p/7537\" target="_blank">E.164 format with leading
+.