Choose SMPP connection for MMS notifications

Choose SMPP connection for MMS notifications SearchSearch
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Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 5860
Registered: 08-2008
Posted on Friday, July 21, 2017 - 07:56 pm:   

This is a follow-up question relating to the discussion SMS sender address for MMS notification via SMPP

I have posted it separately, so that this solution can be more easily found by others with a similar question.


If I have multiple SMPP connections defined, how do I select a particular SMPP account for MMS notifications?

This is a very good question. For the MMSC, we generally make an assumption that if a server is being used as an MMSC, then it is dedicated to that purpose.

Of course, that is not an absolute requirement...I am just explaining our original design intent.

That said, there is a way to force MMS notifications to a specific SMPP account.

Create an SMS User account named localsystem-mmsc ... disable all login protocols so that the user cannot actually login ... like this:

For the SMPP connection to be used for MMS Notifications only:

Add localsystem-mmsc to the preferred list...and make certain "Support any outbound message traffic" is checked.

When the preferred list contains one or more user accounts, the connection is preferred for that account and blocked for others. However, for these preferred accounts, normal routing rules still apply. So this combination routes all messages submitted by localsystem-mmsc (an internal name used by the MMSC) only via this SMPP connection, and blocks all others.

Important Note: On most versions of NowSMS, there is a bug where this technique only works if the "Default Sender Address" setting is not blank.

NowSMS Support

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