Vonage/Nexmo Invalid Phone Number
Understanding Vonage/Nexmo SMS API
Vonage, formerly known as Nexmo, provides a robust SMS Communication API that allows developers to integrate SMS capabilities into their applications. This tool is widely used for sending and receiving text messages globally, offering features like message tracking, delivery reports, and more.
Identifying the Symptom: Invalid Phone Number
When using the Vonage/Nexmo SMS API, you might encounter an error stating "Invalid Phone Number." This error typically arises when the phone number provided does not meet the expected format or is not supported by the API.
Exploring the Issue: Incorrect Phone Number Format
The "Invalid Phone Number" error occurs when the phone number is not in the correct format. Vonage/Nexmo requires phone numbers to be in the E.164 format, which includes the country code and excludes any special characters or spaces.
Common Mistakes
- Missing country code
- Using spaces or special characters
- Incorrect number of digits
Steps to Fix the Invalid Phone Number Issue
To resolve the "Invalid Phone Number" error, follow these steps:
Step 1: Verify the Phone Number Format
Ensure the phone number is in E.164 format. For example, a US phone number should be formatted as +12345678900.
Step 2: Include the Country Code
Make sure the phone number includes the correct country code. You can find a list of country codes here.
Step 3: Remove Special Characters
Strip any spaces, dashes, or special characters from the phone number. The number should be a continuous string of digits prefixed by a plus sign and the country code.
Additional Resources
For more detailed information on phone number formatting and troubleshooting, refer to the Vonage Developer Documentation.
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