The gateway supports the CIMD2 (Computer Interface to Machine Distribution, version 2) protocol to connect to an SMSC over the internet or other private TCP/IP network. This protocol is implemented by Nokia SMSCs.

To add a CIMD2 connection, select “Add” from the “SMSC” configuration dialog. Then select “CIMD2 over TCP/IP“.

“Server Host Name” specifies the TCP/IP address or host name of the CIMD2 server.

“Server Port” specifies the TCP/IP port on the CIMD2 server to which the gateway should connect.

User Name” specifies the user name for the gateway to use when connecting to the CIMD2 server.

Password” specifies the password for the gateway to use when connecting to the CIMD2 server.

“Sender Address” specifies the default sender address (phone number) to apply to outbound SMS messages. The CIMD2 server may override this setting.

Many CIMD2 connections allocate multiple phone numbers to an individual SMSC account. The “Sender Address Prefix” setting specifies the prefix associated with all phone numbers allocated to the SMSC account.

Check “Allow Sender Address Override” if you want to allow messages submitted to the gateway to be able to specify a sender address. If this box is checked, and a sender address is present in a message being submitted to a CIMD2 based SMSC, the sender address in the message will be submitted to the SMSC. The CIMD2 server may override this setting.

Some CIMD2 servers may require that clients submit keep-alive messages to the server every so many seconds or minutes, or the server will time out the connection. To enable keep-alive messages, specify a value in seconds for the “Keep-Alive” setting.

Check the “Enable Receive Messages” box if you wish to receive messages from the CIMD2 server.

It is possible to configure NowSMS to route all SMS messages received via this SMSC connection to a user account on the NowSMS server by selecting the user account in the “Route SMS to local user” setting. It is possible for a user to connect to the NowSMS server either using SMPP (an SMS specific protocol) or POP3 (an e-mail protocol). These user accounts are defined on the “SMS Users” page of the NowSMS configuration dialog.

Check the “Receive MMS Messages” box if you will be receiving MMS Notification messages via the SMSC. Note that most service providers do not support the routing of MMS notification messages via an SMSC connection. If MMS messages will be received via the SMSC connection, it is necessary to also configure additional MMS settings. The “MMS Settings” dialog will display a dialog with additional configuration settings that are required for enabling the gateway to be able to receive MMS messages from the operator network. For additional configuration information, please refer to Connecting to an Operator MMSC – Using a GPRS Modem. For additional configuration information on processing received MMS messages, please refer to 2-Way MMS Support.

The “Routing” group of options is used when multiple SMSC connections are defined to the gateway. These options define what messages should be routed to this connection. The Routing options are common to SMPP, GSM Modem, UCP/EMI and HTTP connections, and are described in the Routing Options section.

When the “OK” button is selected, the gateway will attempt to connect to the UCP/EMI server to verify the configuration information provided. Diagnostic information will be displayed if the connection fails. The connection will only be added to the configuration after a successful connection to the UCP/EMI server.