ClickSend SMPP API
Introduction
For our customers that require high volume SMS messaging with the lowest possible latency, we offer a SMPP service.
You need to reach out to our 24/7 support team (via live chat on our website) to get your SMPP credentials to use this service. They will ask for the public IP address of your server(s) as they need to whitelist it before you connect.
Base URLs:
SMPP Account Details
We have 2 SMPP hosts available. We recommend you open at least 1 bind to each.
| Setting | Parameter |
|---|---|
| Host | smpp1.clicksend.com and smpp2.clicksend.com |
| Port | 2775 or 2776 for SSL/TLS |
| Username | Provided by our 24/7 support team |
| Password | Provided by our 24/7 support team |
Maximum instances (binds): Default 2 per SMPP account. For more connections, please contact your account manager.
IP Access
To access the SMPP server, let us know the public IP address so we can whitelist it.
SMPP Parameters
| Setting | Parameter |
|---|---|
| NPI (Number Plan Indicator) | 0 |
| TON (Type Of Number) | 1 |
| Default Window Size (Assync Mode) | 10 |
| Data Encoding | 0 (Default GSM 7 bit) or 8 (UCS2/UTF-16B) is recommended. Most other character encoding should be supported. |
| Keep Alive Interval | 30 |
Message States
A message will always be in one of the following states:
| Message state | Value | Description |
|---|---|---|
| ENROUTE | 1 | Message is in the process of being sent to the destination |
| DELIVERED | 2 | Message has been delivered to destination |
| EXPIRED | 3 | Message validity period has expired |
| DELETED | 4 | Message has been deleted |
| UNDELIVERABLE | 5 | Message is undeliverable |
| UNKNOWN | 7 | Message is in invalid state |
Delivery Reports
Delivery report timestamps will be in the UTC timezone.