# Enabling SM Service

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Descriptions

Short message service is a mechanism of delivery of text messages over the mobile networks. It is a store and forward way of transmitting messages to and from mobiles. The message from the sending mobile is stored in a central short message center (SMS) which then forwards it to the destination mobile. This means that in the case that the recipient is not available, the short message is stored and can be sent later. Each short message can be up to 160 characters. These characters can be text (alphanumeric) or binary Non-Text Short messages. An interesting feature of SMS is return receipts. This means that the sender, if he wishes, can get a small message notifying if the short message was delivered to the intended recipient. Since the SMS uses signaling channel as opposed to dedicated channels, these messages can be sent/received simultaneously with the voice/data/fax service over the GSM network.

To enable short message service, SCCP, XAPP and SMSC parameters need to be configured on NSS side.

Implementation

| Configure SCCP Parameters

1.Go to EMS >Configuration >NSS >SCCP.

2.Make sure the System ID at the upper right corner displays SCCP(MSS_Pub), click the button.

1.Click the Local Node tab.

2.Click the hyperlinked index number of SMSC to open the SMSC Option window.

3.Configure the relevant parameters given in the following table.

4.Click the button to update parameters to application servers.

Sub-parameter | Description (Click highlight SAVE after change) | Recommended Value
Network Indicator | Specify the local node to a network. Choose the same network as MTP3 setting. | National
MSISDN | The E.164 node address of SMSC. | CC+NDC+SN
IP 0 | IP address of the SMSC 0. | SMSC0 = 172.18.98.1
IP 1 | IP address of the SMSC 1. | SMSC1 = 172.18.99.1

| Configure SMSC Parameters

1.Go to EMS >Configuration >NSS >SMSC.

2.Click the button at the upper right corner.

1.On the System tab, configure the relevant parameters given in the following table.

2.Click the button to update parameters to application servers.

Sub-parameter | Description (Click highlight SAVE after change) | Recommended Value
CDR Flag | Enable or disable the Call Detail Record generation of short messages. | Enable
SM Validity Period | Define the maximum duration of a pending message which should be kept in sending array till reaches the called subscriber. Messages can't send out in the validity period will be deleted. The minimum unit is 1 Second. | 43200
Log Flag | Enable or disable the log generation of the short message service. | Enable

1.Click the MSISDN Segment tab to display the MSISDN Segment table.

2.Click the hyperlinked index of an unoccupied line to open its Option window.

3.Configure the relevant parameters given in the following table.

4.Click the button to update parameters to application servers.

Sub-parameter | Description | Recommended Value
MSISDN Start | The MSISDN range of subscribers that are allowed to use the short message services. Specify the beginning of MSISDN range. | --
MSISDN End | The MSISDN range of subscribers that are allowed to use the short message services. Specify the end of MSISDN range. | --

| Configure XAPP Parameters

This setting allows to customize the Calling Line Identification from one format to another format, which will be displayed to the called subscriber.

1.Go to EMS >Configuration >NSS >XAPP.

2.Click the button at the upper right corner.

1.Click the CLI Manipulation tab, and then click New at the bottom of the CLI Manipulation table.

2.In the CLI Manipulation ID box, select an available number for the new entry, and then click the button.

3.In the CLI Manipulation Option window, configure the relevant parameters given in the following table.

4.Click the button to update parameters to application servers.

Sub-parameter | Description | Recommended Value
Original NAI | Original Number Attribute Identity of the caller numbers beginning with this prefix. | IDD
Prefix | The prefix of caller number. | --
Deletion Count | Determines how many digits of the incoming caller number should be deleted. | --
Modified NAI | Number Attribute Identity of the caller number after manipulation. | Unknown
Insertion Count | Determines how many digits will be inserted to the front. | 0
Inserted Digits | Determines which digits should be inserted to the beginning. | N/A
Length of Number | The length of incoming caller number. | --

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