Support for any character set
Built-in support for GSM and Unicode characters allows the use of any language, including Chinese and Arabic, as well as emojis and symbols.Message queuing
Send multiple SMS messages in a single API request. Plivo handles the queuing of your messages. This table shows SMS message throttling limits:Source Number Type | Destination Country | Dequeue Rate |
US / Canada 10-digit phone number | US / Canada | 1 message per 4 seconds |
US / Canada toll-free number | US / Canada | 40 messages per second |
US / Canada short code | US / Canada | 100 messages per second |
International number or alpha sender ID | Other countries | No limit |
Long message concatenation
Plivo’s Message API allows you to send SMS messages that exceed 160 characters in length. Plivo takes care of transmitting long messages with the appropriate metadata to ensure they are delivered as one intact message on the recipient’s handset.Delivery report notification
Receive real-time delivery notifications for SMS messages that you send. You can also track delivery rates and review the performance of your account.Opt-out handling
Plivo automatically handles SMS opt-out if your Plivo number receives replies with an opt-out keyword. We support these opt-out keywords:- Stop
- Cancel
- End
- Quit
- Unsubscribe