The TeletopiaSMS SMPP server supports both versions 3.3 and 3.4 of the SMPP specifications.
Our SMPP server implementation supports exceeding the password length limitations specified in the SMPP specification.
We provide primary and backup SMPP servers for redundancy and failover.
The supported bind types are TRANSCEIVER, TRANSMITTER and RECEIVER, and all combinations of bind types are supported on the same account.
We require all the client IP-addresses to be put on an allow-list in order to connect. Secure connections over TLS are also supported.
| Enquire Link Frequency | 120 seconds (unless there is activity) |
| Enquire Link Timeout | 20 seconds |
| PDU Send timeout | 20 seconds |
| Maximum number of binds | 2 |
| Throughput: SMS per second (send / receive) | 10 / unlimited |
| Default character encoding | GSM byte encoded/unpacked (1 byte per character) |
NOTE: If the configured maximum throughput is exceeded, the connection will be throttled.
The format of the delivery receipt follow the format shown in the SMPP v3.4 specification. We have listed some notes about our implementation below.
Successfully delivered message:
id:A9612169BCE0E128C56D061DE8F2491B sub:001 dlvrd:001 submit date:2210251754 done date:2210251754 stat:DELIVRD err:000 text:
Failed delivery of message:
id:DE14922826F8753DF305FB90E52B04D9 sub:001 dlvrd:001 submit date:2210251754 done date:2210251754 stat:UNDELIV err:081 text:
The parameters in the delivery receipt text are as follows:
| Parameter | Description |
|---|---|
| id | The message id returned when submitting the message |
| sub | Not used, always set to 1 |
| dlvrd | Not used, always set to 1 |
| submit date | The time and date at which the short message was submitted (format YYMMDDhhmm) |
| done date | The time and date at which the short message reached it's final state. The format is the same as for the submit date. |
| stat | The final status of the message. The possible values on the TeletopiaSMS SMPP server are:
|
| err | 3 character length error code in decimal. See the error codes used by the TeletopiaSMS SMPP server for more information. |
| text | This field will always be empty |
In addition to the delivery report text shown above, we can also send delivery status using SMPP optional parameters (TLV). The TLV parameters used are:
(0x001E) - Containing the message id returned in submit_sm_resp (null terminated octet string)(0x0427) The final state of the message2 - DELIVERED - Message is delivered to destination3 - EXPIRED - Message validity period has expired (see error code for more information)5 - UNDELIVERABLE - Message is undeliverable (see error code for more information)8 - REJECTED - Message is in a rejected state (see error code for more information)The following is the supported PDU packets on the TeletopiaSMS SMPP server: