AudioCodes Mediant 600 - 14 Control Network; Configuring SRD Table

Version 6.4 191 March 2012
SIP User's Manual 14. Control Network
14 Control Network
This section describes configuration of the network at the SIP control level.
14.1 Configuring SRD Table
The SRD Settings page allows you to configure up to 32 signaling routing domains (SRD).
An SRD is configured with a unique name and assigned a Media Realm (defined in the
Media Realm table - see 'Configuring Media Realms' on page 169). Once configured, you
can use the SRDs as follows:

Associate it with a SIP Interface (see 'Configuring SIP Interface Table' on page 193)

Associate it with an IP Group (see Configuring IP Groups on page 195)

Associate it with a Proxy Set (see Configuring Proxy Sets Table on page 200)

Use it as a destination IP-to-IP routing rule (see Configuring IP-to-IP Routing Table)
Therefore, an SRD is a set of definitions together creating multiple, virtual multi-service IP
gateways:

Multiple and different SIP signaling interfaces (SRD associated with a SIP Interface)
and RTP media (associated with a Media Realm) for multiple Layer-3 networks.

Can operate with multiple gateway customers that may reside either in the same or in
different Layer-3 networks as the device. This allows separation of signaling traffic
between different customers. In such a scenario, the device is configured with multiple
SRD's.
Typically, one SRD is defined for each group of SIP UAs (e.g. proxies, IP phones,
application servers, gateways, and softswitches) that communicate with each other. This
provides these entities with VoIP services that reside on the same Layer-3 network (must
be able to communicate without traversing NAT devices and must not have overlapping IP
addresses). Routing from one SRD to another is possible, whereby each routing
destination (IP Group or destination address) indicates the SRD to which it belongs.
The SRD Settings page also displays the IP Groups, Proxy Sets, and SIP Interfaces
associated with a selected SRD index.
Notes:
• For a detailed description of SRD's, see 'Multiple SIP Signaling/Media
Interfaces Environment' on page 206.
• The SRD table can also be configured using the ini file table parameter
SRD.