CHAPTER37 Advanced SBC Features
Mediant 1000 Gateway & E-SBC | User's Manual
➢ To configure support for dual registration:
1. On the SIP entity (IP Phone), configure the primary and secondary proxy server addresses as
the IP address of the device and where each address has a different SIP port number.
2. Open the SBC General Settings page (Setup menu > Signaling & Media tab > SBC folder >
SBC General Settings), and then from the 'Keep Original User in Register' drop-down list,
select Keep user; add unique identifier as URI parameter.
3. In the Message Manipulations table, configure the following rules:
● Index 0:
◆ Manipulation Set ID: 1
◆ Action Subject: header.contact.url.ac-int
◆ Action Type: Modify
◆ Action Value: '1'
● Index 1:
◆ Manipulation Set ID: 2
◆ Action Subject: header.contact.url.ac-int
◆ Action Type: Modify
◆ Action Value: '2'
4. In the SIP Interfaces table, configure the following SIP Interfaces:
● Index 0 (SIP Interface for IP Phone A):
◆ Name: Interface-1
◆ UDP Port: 5060
◆ Pre-classification Manipulation Set ID: 1
● Index 1 (SIP Interface for IP Phone B):
◆ Name: Interface-2
◆ UDP Port: 5080
◆ Pre-classification Manipulation Set ID: 2
5. In the Proxy Sets table, configure a Proxy Set for each proxy server (primary and secondary):
● Index 0:
◆ Proxy Name: Primary
◆ SBC IPv4 SIP Interface: Interface-1
◆ Proxy Address: 200.10.10.1
● Index 1:
◆ Proxy Name: Secondary
◆ SBC IPv4 SIP Interface: Interface-2
◆ Proxy Address: 200.10.10.2
6. In the IP Groups table, configure the following IP Groups:
● Index 0:
◆ Type: Server
◆ Name: Primary-Proxy
◆ Proxy Set: Primary
◆ Classify By Proxy Set: Enable
● Index 1:
◆ Type: Server
◆ Name: Sec-Proxy
◆ Proxy Set: Secondary
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