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Configuration

6.1.1\. [I want to install the mobility module. Am I right in assuming that configuration of domains specifically for SMPP (as opposed to bindings) will play a large part in setting up delivery of email to text SMS?](faq#faq-mobility-installation)
6.1.2\. [When a message status is ‘P’ (permanent failure), the size of the SMS payload doesn't appear in the permanent failure log. Is there a way to add this information?](faq#faq-sms-payload)
6.1.3\. [How do I use the SMPP_Persistent_Connections option?](/momentum/mobile/mobile-reference/mobile-reference-faq#faq-mobility-persistent)
6.1.4\. [When setting the SMPP_Persistent_Connections option, you set the name of a binding to a number. What does the number assigned to this name do?](/momentum/mobile/mobile-reference/mobile-reference-faq#faq-mobility-persistent-number)

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6.1.1.

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I want to install the mobility module. Am I right in assuming that configuration of domains specifically for SMPP (as opposed to bindings) will play a large part in setting up delivery of email to text SMS?

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Yes, domain configuration defines the interface to the SMSC. A minimal, quick start configuration would look something like this :

smpp {}

Domain "somewhere.com" {
  SMPP_SMSC_Server  = "10.0.0.1"
  SMPP_SMSC_Port = "2776"
  SMPP_SMSC_System_ID = "GSMSGW"
  SMPP_SMSC_Password = "secret"
  SMPP_SMSC_System_Type = "CMT"
  SMPP_ESME_Address = "57425"
}

Everything but SMPP_SMSC_Server, SMPP_SMSC_Port and SMPP_Persistent_Connections can also be specified or overridden on a per-binding basis.

The smpp {} stanza is technically not necessary; if you configure any of the SMPP options it should get autoloaded (but it doesn't hurt to put it in and if you wish to do module-level debugging you will need it). The SMPP_SMSC_System_Type may or may not be needed—that depends on the SMSC you are connecting to, and you'll need to ask the SMSC owner if they expect you to provide a system type or not. If you expect SMS-to-email traffic (and not just email-to-SMS), I would also set a SMPP_Default_Email_Address; this is used as a catch-all in case the reverse address mappings can't find what email address to send SMS-to-email replies to.

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6.1.2.

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When a message status is ‘P’ (permanent failure), the size of the SMS payload doesn't appear in the permanent failure log. Is there a way to add this information?

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You can add the size of the SMS payload by changing the format string for the log_permfail_format option. The default value for this option is %t@S@%s@%d@%q@%bg@%b@%ip@%rm@%T@%S@%e. To include the size, simply add the macro %l.

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6.1.3.

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How do I use the SMPP_Persistent_Connections option?

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The following configuration shows how to use the SMPP_Persistent_Connections option.

Domain "somewhere.com" {
  SMPP_SMSC_Server  = "10.0.0.1"
  SMPP_SMSC_Port = "2776"
  SMPP_SMSC_System_ID = "GSMSGW"
  SMPP_SMSC_Password = "secret"
  SMPP_ESME_Address = "57425"
  SMPP_Default_Email_Address = "user@domain.com"
  SMPP_Bind_Type = "Transmitter"
  SMPP_Persistent_Connections = [ "persist_this" = 1 ]
}

Binding "persist_this" {
  Max_Outbound_Connections = 1
  SMPP_Bind_Type = "Receiver"
}

In this case, Momentum will create connections as needed for transmitting SMS on the Domain somewhere.com and will also maintain a single persistent connection for receiving SMS on the binding persist_this.

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6.1.4.

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When setting the SMPP_Persistent_Connections option, you set the name of a binding to a number. What does the number assigned to this name do?

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In SMPP_Persistent_Connections, each binding is mapped to the number of connections you want to have to a particular domain from that binding. If a binding appears in SMPP_Persistent_Connections, then instead of figuring out the number of connections based on the number of messages queued for the domain/binding using the settings, Max_Outbound_Connections and Connection_Allocation_Aggressiveness, we always try to open (and keep open) the number of connections you have configured in SMPP_Persistent_Connections. Bindings configured with a SMPP_Bind_Type of Receiver should always appear in SMPP_Persistent_Connections, or no connections will ever be opened on that binding (because Receiver bindings will never have messages queued on them).

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