Call Cowboy encourages E.164 phone number formatting for all international phone numbers. Using the E.164 format for all overseas Ringless Voicemail, Dialing and SMS will ensure a much higher delivery rate.
E.164 Phone Number Formatting
E.164 formatting for phone numbers entails the following:
For example, here’s a US-based number in standard local formatting: (415) 555-2671
Here’s the same phone number in E.164 formatting: +1 (415) 555-2671
In the UK, and many other countries internationally, local dialing may require the addition of a '0' in front of the subscriber number. With E.164 formatting, this '0' must usually be removed.
For example, here’s a UK-based number in standard local formatting: 020 7183 8750
Here’s the same phone number in E.164 formatting: +442071838750
Help with E.164 Formatting
If you are unsure of the correct Country code, a good reference is this Wikipedia page that lists countries and their calling codes .