Formats
This document outlines the various data formats used by Voxtelesys. These data formats are required when making API requests to Voxtelesys and are implemented by Voxtelesys when sending webhooks.
Phone Numbers
Voxtelesys APIs require all phone numbers in requests to be formatted using the E.164 standard. E.164 is an international numbering format that ensures global uniqueness of a number. An E.164 number consists of a + (plus sign) followed by the country code, and then the subscriber number.
- Numbers must start with a plus sign (
+). - Numbers must not include spaces, dashes, or parentheses.
- The maximum length of an E.164 number is 15 digits, including the country code.
Examples
| E.164 Format | Country | Country Code | Subscriber Number |
|---|---|---|---|
| +17019299797 | US | 1 | 7019299797 |
| +447911123456 | UK | 44 | 7911123456 |
| +919876543210 | IN | 91 | 9876543210 |
Note: Ensure all phone numbers in your API requests conform to the E.164 format to avoid validation errors.
Dates and Times
Voxtelesys APIs use the ISO 8601 standard for representing dates and times. All timestamps are provided in UTC.
Examples
| ISO 8601 Format | Description |
|---|---|
| 2025-04-17T14:30:00Z | April 17, 2025, at 14:30 UTC |