Update XCAP server

To configure the XCAP Server for Sentinel VoLTE, you can change the Diameter peer connection to the HSS and populate XCAP server settings and MMTel service data. You may optionally enable XCAP authentication using Sentinel AGW.

Diameter peer connection to the HSS

For the Diameter peer connection to the HSS, a file called VolteHssDiameterConfig.xml must be present in a folder called rem_home in Tomcat. If this folder does not exist, create it:

1

2

Change the values for the HSS hostname and port. There are two CDATA sections in the file which contain XML. They both need adjustment.

  • The first one has an element called peer which contains an element called uri.

    • This element has a hostname and port value which must be updated to be that of the HSS server.

    • Just below that is an element called address whose hostname also needs updating.

  • The second CDATA section contains two elements called hostname. These need the same adjustment as well.

Populate XCAP server settings and MMTel service data

There are several configuration pages in REM for XCAP connectivity and MMTel service data mappings that must be populated. This can either be done manually following the admin guide, or more easily using the script volte-sentinel-mappings-config. This file is located in the build/bin directory of the Sentinel VoLTE SDK.

This can be executed from your VoLTE TAS’s command line, provided the Java Runtime Environment (v 7+) is installed. The command must be given these arguments:

Mandatory Arguments What it specifies 
-u (--username)

Your Rhino Element Manager (REM) username.

 
-pw (--password)

Your Rhino Element Manager (REM) password.

 
-h (--hostname)

The hostname or IP address of your Rhino Element Manager (REM).

 
-p (--port)

The port of your Rhino Element Manager (REM).

 
-n (--network-operator)

The network operator name.

 
-r (--rhino-instance-id)

The Rhino Instance ID.

 
-dh (--hss-destination-host)

The destination host of the HSS.

 
-dr (--hss-destination-realm)

The destination realm of the HSS.

Optional Arguments

What it specifies

 
-x (--xcap-mapping)

Additional XCAP Simservs mappings.

Must be in the format -x "<simservsPath>;<mmtelPath>".

Can be specified multiple times. e.g. -x "<simservsPath1>;<mmtelPath1>" -x "<simservsPath2>;<mmtelPath2>"

Here is an example command:

cd ~/sentinel-volte/sentinel-volte-sdk
./build/bin/volte-sentinel-mappings-config -u emadm -pw password -h localhost -p 8080 -r Local -n OpenCloud -dh hss-instance -dr example.com -x "extensions/operator-flexible-alerting-group;complete-flexible-alerting/operator-flexible-alerting-group" -x "extensions/flexible-alerting-group-members;complete-flexible-alerting/operator-flexible-alerting-group/members"
Tip To see a listing of the required arguments, from the command line, execute the JAR file without any arguments.

Enable XCAP authentication using Sentinel AGW

By default the XCAP Server assumes that requests will be authenticated externally using an Authentication Proxy (AP). If this is the case, no further configuration is required.

If an AP is not suitable or available, the XCAP server can be configured to authenticate requests itself using OpenCloud Sentinel AGW. Sentinel AGW provides an implementation of 3GPP GAA (Generic Authentication Architecture) procedures.

For more information, and instructions on configuring the XCAP Server with Sentinel AGW, see the Sentinel AGW Guide.

OpenIMS HSS

If you’re using the OpenIMS HSS, you’ll need to specify the interface (IP address and port values) that it uses:

1

Edit the DiameterPeerHSS.xml file in the /path/to/HSS/FHoss/deploy directory.

2

Find the Acceptor XML element.

3

Change its binding to the desired IP address (or host name).

4

Change its port values to the desired port.

Create init.d scripts

There are two init.d scripts for Ubuntu Linux which make starting and stopping Rhino and REM easier (linked below):

  • rhino — for Rhino

  • rem — for REM running on Apache Tomcat

Note: These are illustrative and useful for Proof of concept rather than production environments.

To set these up:

1

Copy the script to the host server’s /etc/init.d/ folder:

sudo cp rhino /etc/init.d

2

Make the script executable:

sudo chmod +x /etc/init.d/rhino

3

Refresh, with the update-rc.d command:

sudo update-rc.d rhino defaults 99

Restart Rhino

Finally, restart Rhino by executing the following commands in a terminal, from the Rhino install directory.

./stop-rhino.sh --node 101
./start-rhino.sh
Tip If you chose to set up the Rhino init.d script, you can use these commands to stop and start it.
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Sentinel VoLTE Version 2.7.0