What can I do here?
Use this window to create or edit a SIP Proxy (also known as a SIP server or Registrar).
Getting Here - Object Explorer > New > Network Object > More > VoIP Domain > SIP Proxy |
There are five types of VoIP Domain objects:
In many VoIP networks, the control signals follow a different route through the network than the media. This is the case when the call is managed by a signal routing device. Signal routing is done in SIP by the Redirect Server, Registrar, and/or Proxy. In SIP, signal routing is done by the Gatekeeper and/or gateway.
Enforcing signal routing locations is an important aspect of VoIP security. It is possible to specify the endpoints that the signal routing device is allowed to manage. This set of locations is called a VoIP Domain. For more information refer to the R80.10 VoIP Administration Guide.
The table shows a list of supported SIP deployments. NAT (Hide or Static) can be configured for:
|
No NAT |
NAT for Internal Phones — |
NAT for Proxy — |
---|---|---|---|
Endpoint to Endpoint |
Yes |
Static NAT only |
Not applicable |
SIP Proxy in External |
Yes |
Yes |
Not applicable |
SIP Proxy to Proxy |
Yes |
Yes |
Yes |
SIP Proxy in DMZ |
Yes |
Yes |
Yes |
The Proxy refers to a SIP proxy and/or registrar. If there is more than one proxy device, signaling passes through one or more Proxies or Registrars. After the call has been set up, the media passes from endpoint to endpoint, directly or through one or more Proxies.
SIP Endpoint-to-Endpoint Topology |
The IP Phones communicate directly, without a Proxy. Static NAT can be configured for the phones on the internal side of the gateway. |
SIP Proxy in External Network |
The IP Phones use the services of a Proxy on the external side of the gateway. This topology enables using the services of a Proxy that is maintained by another organization. It is possible to configure Hide NAT (or Static NAT or no NAT) for the phones on the internal side of the gateway. |
SIP Proxy to SIP Proxy |
Each Proxy controls a separate endpoint domain. Static NAT can be configured for the internal Proxy. For the internal phones, Hide NAT (or Static NAT) can be configured. |
SIP Proxy in DMZ |
The same Proxy controls both endpoint domains. This topology makes it possible to provide Proxy services to other organizations. Static NAT (or no NAT) can be configured for the Proxy. Hide NAT (or Static or no NAT) can be configured for the phones on the internal side of the gateway. |
You can use SIP with NAT with these exceptions: