Multiple GSM Modems

Multiple GSM Modems SearchSearch
Author Message
HankyPanky
Posted on Monday, March 03, 2003 - 11:27 am:   

How do I specify which gsm modem to use for sending a SMS ?
Bryce Norwood - NowSMS Support (Bryce)
Posted on Monday, March 03, 2003 - 04:24 pm:   

There are two different ways.

You can either specify routing based upon the recipient phone numbers to receive the message ... or when you submit the message for sending, you can associate the message with a particular sender address that belongs to a particular SMSC connection. (Or in a really complex environment, you can use a combination.)

The routing based upon the recipient phone number is somewhat obvious. It's covered in the documentation, and in the "Routing Options" section of the properties for the SMSC connection. (If you have any questions about this, let me know. I'm just figuring that this is not what you are asking about.)

The routing based upon the sender address is less obvious, so I'll go into that in some more detail here.

With each SMSC connection, you can define a "Sender Address". For a GSM modem, since you can't override the phone number on a GSM modem connection, this field is called the "Phone Number" when you click on "Properties" for the modem in the SMSC list.

When you submit a message via the HTTP interface (not using the menu, but using a direct HTTP submission), one of the variables that can be specified is the "Sender".

If "Sender" is set for an outbound message, the gateway tries to match it up with a defined "Sender Address" of one of the configured SMSC connections.

If there is no match, then the outbound "Routing Options" applies.

If there is only one match, the message is routed out through that connection.

If there are multiple matches on sender address, then "Routing Options" settings apply within the group of connections that share the same "Sender Address" in the configuration.

-bn