NetBorder SS7 Gateway - SIP to SS7 Configuration Guide

Perform the First Boot/Initial Setup

Power Connection

Sangoma NSG comes with three types of power supplies

• AC PSU

  • AC Single PSU                                  (Default)

  • AC Dual-Redundant PSU

• DC PSU

  • DC Dual-Redundant PSU

PSU Connection

• Standard 110V or 220V, 50-60Hz connection.

• Optional Dual-Redundant AC 110V or 220V, 50-60Hz connection.

• Optional Dual-Redundant DC -48V

DC PSU Connection

Connecting cables to a power supply depends on the remote power source.

The PSU has voltage reverse protection.

If the red and black wires are connected the wrong way, the system will not power up. But there will be no damage to the PSU or the system.

Establishing Initial WebGUI Connection

NSG factory settings are not very useful, as the Primary Ethernet port:eth0 is set to a static IP address. Proceed to connect to the NSG Appliance via Laptop’s web browser.

• Connect the Primary Signaling Port: eth0 to a LAN Switch

• Connect Laptop to LAN Switch

• Configure Laptop to IP address: 192.168.168.1/24

• Using Laptop web browser go to URL: http://192.168.168.2:81

• Login via

  • Username: root, Password: sangoma
    
    

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Change Password

After successful Login, please proceed to change the default password. Sangoma NSG appliance comes with default password.

For security reasons please change the password.

• Select Password page from side/top System menu

• Enter your new password

• Press update to save

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Console SSH Configuration

By default NSG systems come with SSH enabled. To configure ssh service

• Select Services from side/top System Menu

• Enable or disable Secure Shell service
  
  
  

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NSG License

Each NSG appliance comes with pre-installed license.

In case of upgrades, of expansions please contact Sangoma Sales.

 To update NSG license

• Select License from side/top Configuration Menu

•  NSG License from Sangoma Support

• Upload the License into the NSG Gateway via the Upload Button The License page offers the detailed license overview.
  
  
  

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Network Configuration

Network configuration section only applies to Physical Network Interfaces: eth0 and eth1. It does not apply to VLAN IP and route configuration.

Network Setup

•  Physical network interfaces: eth0, eth1 are configured in the section

Configuration-> Settings-> IP Settings.

This section can only be used to modify/configure IP, Host, DNS information for Physical Network interfaces eth0 and eth1.

Default Route/Gateway 

To configure a system default route through the IP Settings section, the appropriate interface role type to use is “External”. The External interfaces get associated to the default system route.

Static Routes

Static routes that apply to physical network interfaces eth0, eth1 should be configured in

Configuration-> Network -> IP Route section.

Media Ethernet Interface: Transcoding

• NSG comes with optional, media/codec transcoding hardware. The media transcoding hardware network interface is: eth2. The media transcoding network interface comes preconfigured with a 10.x.x.x ip address.

Configuration of the eth2 device should be performed in Configuration->Settings->Media.

VLAN Config IP & Routes

• VLAN’s can be configured in section Configuration-> VLAN

• VLAN can be configured on top of eth0 and eth1 network interface only.

• All VLAN related configuration such as IP address, VLAN ID and VLAN routes must be configured in VLAN configuration section only.

VLAN Default Route

• If a system default route needs to be configured via VLAN interface.

• Configure the system default route in Configuration->  VLAN section.

• Refer to the VLAN section below.

Physical Network Interface Configuration

 By default the NSG appliance pre-configured with 192.168.168.2/24 address on Primary Port (eth0). The IP address can be changed based as follows

• Select IP Settings from side/top Configuration menu

• Specify Firewall Mode and Hostname

• Select Edit under eth0 and eth1 device and configure

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Appliance Network Interfaces

• eth0

  • Primary Signaling Port

  • By default provisioned as static 192.168.168.2

  • By default allows access to ssh and management http

• eth1

  • Secondary Signaling or Management Port

  • By default provisioned as static no IP address

  • By default allows access to ssh and management http

• eth2

  • Sangoma transcoding DSP board

  • Provisioned using Media page.  Do not modify in this section.

Selecting Default Route

NSG appliance should have a single default route. The default route is used to access Internet.

To configure a default route on eth0

• Set the eth0 interface mode to External.

• Refer to section below.

Network Section

Interface Section

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Network Role

When configuring a network interface, the first thing you need to consider is the network role in IP Settings. Will this network card be used to connect to the Internet, for a local network, for a network with just server systems? The following network roles in IP Settings are supported in NSG and are described in further detail in the next sections:

• External - network interface with direct or indirect access to the Internet

• LAN - local area network

• Hot LAN - local area network for untrusted systems

• DMZ - de-militarized zone for a public network
   

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Ethernet Options

Setting custom Ethernet options such as disabling auto negotiation is done as part of the IP Settings.

• Select IP Settings from side/top Configuration Menu

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Specify Options field in order to add special configuration to this interface.

Virtual IP’s

NSG supports virtual IPs. To add a virtual IP address, click on the link to configure a virtual IP address and add specify the IP Address and Netmask. You will also need to create advanced firewall rules if the virtual IP is on the Internet

IP Troubleshooting

In most installs, the network cards and IP settings will work straight out of the box. However, getting the network up the first time can be an exercise in frustration in some circumstances. Issues include; 

• Network card compatibility

• Invalid networks settings (username, password, default gateway)

Cable/DSL modems that cache network card hardware information

Static Routes

In some cases a static route must be defined for a specific network interface: eth0 or eth1. The static route support is done via File Editor 

• Select IP Route from side/top Configuration Menu

• Add a custom route command

Save and Apply

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The IP Route section only allows route add command syntax

Routing Table Status

• Select VLAN Status from side/top Overview Menu

• Second table shows full system routing table.
  
  
  

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VLAN

Virtual local area network, virtual LAN or VLAN is a concept of partitioning a physical network, so that distinct broadcast domains are created. NSG mark’s packets through tagging, so that a single interconnect (trunk) may be used to transport data for various VLANs.

 A VLAN has the same attributes as a physical local area network (LAN), but it allows for end stations to be grouped together more easily even if not on the same network switch. VLAN membership can be configured through software instead of physically relocating devices or connections. Most enterprise-level networks today use the concept of virtual LANs(VLAN). Without VLANs, a switch considers all interfaces on the switch to be in the same broadcast domain

VLAN Configuration

Currently NSG only supports VLAN configuration via GUI

• Select VLAN from side/top Configuration Menu

• Copy in the VLAN configuration script below into the file editor

• Save

  • On save the VLAN configuration will be applied

  • Proceed to VLAN Status confirm VLAN configuration
    
    

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Example of sample script that could be copied into the VLAN config startup script:

In the example above, a single VLAN was created

• on top of the Primary Signaling Ethernet Port:eth0 with

• VLAN ID=5 and

• IP =192.168.1.100/24.

VLAN Routes

An optional route can be created to point to a gateway within a VLAN network 

Additional VLAN

If more VLAN’s are needed, proceed to repeat the above steps for all VLANs.

When Save button is pressed:

• The VLAN configuration will be applied

• The script above will be executed line by line.

• Status window will pop up with VLAN config status. If one of the lines fails, the pop up will report it.

• Proceed to Overview -> VLAN status below to confirm VLAN and Route configuration

VLAN Status

• Select VLAN Status from side/top Overview Menu

• This page shows

  • All configured VLANs

  • System Routing table

  • Individual VLAN configuration

  • Individual VLAN IP information
    
    

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Date & Time Service Config

The Date/Time configuration tool allows you to:

• Select your time zone

• Synchronize your clock with network time servers

• Enable/disable a local time server for your network

To configure:

• Select Date from side/top System menu

• Refer below to all available options

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Initial Gateway Configuration

NSG by default contains following VoIP/TDM Sections

• Global Gateway Config

  • Configured in Global gateway section.

  • Used to configure SIP, RTP, RADIUS options.

• SIP/RTP

  • Configured in Global Gateway section

  • SIP profile is always started

• MG

  • Configured in MG gateway section

  • MG Termination ID’s are mapped to TDM channels in TDM gateway section.

  • For full MG configuration one must configure MG and TDM sections.

• SS7

  • Configured in TDM gateway section

  • ISUP Termination

  • M2UA Signaling Gateway

• Media/Transcoding

  • Configured in Media gateway section

  • Enable and select hw codec support

  • Note: HW transcoding is an optional feature.

• Dialplan

  • Used for SIP to TDM

  • Note: Dialplan is not used in MG/Megaco/H.248 mode.

• Apply

  • All configuration files are saved to disk at this step.

  • Above configuration sections only save information in local database.

  • NSG Gateway can be started in Control Panel after this step

  • TDM Status can be used to monitor Gateway Status.

Global Gateway Configuration

• Select Global from side/top Configuration Menu

• Change a SIP global variable and Click on Save (Disk Icon)

• Proceed to Control Panel and Restart the VoIP Gateway.

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SS7 ISUP Configuration

SS7 is a signaling protocol, it is used to carry call control information such as call start, call progress, call hang-up etc. The SS7 call control information is used to control arbitrary number of voice channels that are carried using T1/E1 spans.

In a typical SS7 setup the telco will provide you with SS7 information that will be used to map T1/E1 physical spans and channels into SS7 call control information.

 The NSG TDM SS7 configuration page has been designed as bottom up SS7 configuration approach.

1. Identify T1/E1 spans on your system

2. For each T1/E1 span on your system:

   1. Determine which T1/E1 spans will carry SS7 Link channels

   2. T1/E1 Span can either carry an

      1. SS7 Link in one of its channels or

      2. All T1/E1 channels can be used to carry voice.

   3. Configure T1/E1 physical configuration parameters

   4. Identify if T1/E1 span carries SS7 link or is Voice Only

3. If T1/E1 span has an SS7 link associate with it:

   1. Create a new SS7 Link

   2. Next step is to bind the new SS7 Link to an SS7 Linkset.

   3. If an SS7 Link set does not exist, Create a new SS7 Link Set

   4. Then bind the SS7 Link to an existing or new SS7 Link Set

   5. Next step is to bind the SS7 Linkset into an SS7 Route.

   6. If an SS7 Route does not exist, Create a new SS7 Route

   7. Then bind the SS7 Linkset to an existing or new SS7 Route

   8. Next step is to bind the SS7 Route into an SS7 ISUP Interface