In this section:
Introduction
This section describes how to configure an SBC 1000, SBC 2000 or SBC SWe Edge to interconnect with a Service Provider (SP) through SIP authenticated registration. This section gives the main guidelines only on this specific topic, so technical readers should have prior knowledge and experience using each of these products.
Use the Easy Config Wizard to complete the initial setup, then add or modify the relevant items.
Software Versions
Any GA versions running on any SBC Edge Portfolio products.
Feature supported since release 4.
Architecture
The sample configuration detailed below includes two SBC SWe Edge units. One is the customer SBC Edge Portfolio, with its configuration described in the following sections. The second one simulates a Service Provider SBC, ‘Sip.operator.net’ requiring SIP Registration authentication.
Prerequisites
Configure the SBC Edge Portfolio for DNS resolution; this configuration resolves the SP FQDNs provided by the Service Provider and configured in the SBC Edge Portfolio. This configuration is done at the System level as shown:
DNS 8.8.8.8 and 8.8.4.4 are the Google public Authoritative Servers.
Configuring the SBC Edge
Follow the steps below to configure the SBC Edge Portfolio for the SIP Service Provider registration with authentication scenario.
Remote Authorization Table
Create a Remote Authorization Table on the SBC Edge Portfolio, and create one entry in this table with the authentication information provided by the SIP Service Provider.
In the example below, the Remote Authorization table, SIP SP Remote Auth Table, is first created. An entry is then created with realm “ribbon.fr”, Authentication ID “ABCDEFGH” and associated password, as expected by the SP SBC. Ensure the From URI User Match field is set to Regex, and configure the Match Regex field as (.*) if the From for the Register request is different to the Authentication ID.
Contact Registrant Table
Create a Contact Registrant Table on the SBC Edge Portfolio, and create at least one entry with the information provided by the SIP Service Provider. It is the phone number(s) that is used during registration and calls.
In the sample below, the SIP SP Contact Registrant Table is first created.
Set Type of Address of Record to Remote, if you want to send Register with SP SBC FQDN instead of the SBC Edge Portfolio IP.
Some Service Providers require AoR URI with prefix sip:URI. In this case, an entry is created in SIP Contacts with the following URI:
The prefix :sip is not required in both cases here.
SIP Server Table
Create a SIP Server Table on the SBC Edge Portfolio. It contains the information from the distant SIP Service Provider SBC that the SBC Edge Portfolio needs to register to and send calls to.
In the example below, the distant SP SBC is “sip.operator.net”, distant port is “5060” and the protocol expected by the distant is “UDP”.
Configure the Remote Authorization Table and the Contact Registrant Table created earlier, with the sub-parameters as below:
If the Service Provider SBC supports Monitor through SIP OPTIONS messages, you can enable it in the Transport section.
SIP Profile
If the Service Provider needs some special SIP parameters, create a SIP Profile accordingly and associate with the SP Signaling Group.
In the sample below, a SIP Profile is created to present the SP SBC FQDN in the From field:
SIP Signaling Group
Select the SIP Server Table created earlier, the SIP Profile if required and configure the correct Federated FQDN, Port, and Protocol when you configure the SIP Signaling Group that will connect the SBC Edge Portfolio with the SP SBC.
The example below matches the different sample objects configuration done earlier.
Check and Logs
Registration check
When the configuration is complete and connection is possible between the SBC Edge Portfolio and Service Provider SBC Edge Portfolio, you can check the status of the registration in the Contact Registrant Table by clicking the Registration Status link.
Alternatively, check the display option Sessions in the Signaling Group Table.
Log Sample
To collect the trace in the Syslog, select the correct subsystems. For this, click Apply Log Profile and choose the Profile Name Audio – SIP.
Here is a sample SIP Debug Log from the SBC Edge Portfolio displayed with LX tool. The log shows the Register steps with authentication.
In the Register flow, the SBC Edge Portfolio is 192.168.123.75 and the Service Provider SBC Edge Portfolio is 192.168.123.89/sip.operator.net
The SBC Edge Portfolio sends REGISTER.
Service provider SBC Edge Portfolio replies with 401 Unauthorized to ask credentials for registration on realm 'sip.operator.net’.
The SBC Edge Portfolio sends REGISTER with its credentials.
The service provider SBC Edge Portfolio replies with 200 OK when credentials match and are accepted.
Incoming and outgoing calls are now accepted.