Cisco GRP Bedienungsanleitung PDF herunterladen (Seite 9)

The destination-pattern parameter configured for this dial peer is typically a range of numbers

that are reachable via the remote router or gateway.

Because this dial peer points to a device across the network, the router needs a destination IP

address to put in the IP packet. The session target parameter allows the administrator to

specify either an IP address of the terminating router or gateway, or another device; for

example, a gatekeeper or Cisco CallManager that can return an IP address of that remote

terminating device.

To determine which IP address a dial peer should point to, it is recommended that you use a

loopback address. The loopback address is always up on a router, as long as the router is

powered on and the interface is not administratively shut down. If an interface IP address is

used instead of the loopback, and that interface goes down, the call will fail even if there is an

alternate path to the router.

Example: VoIP Dial-Peer Configuration

The figure illustrates the proper VoIP dial-peer configuration on a Cisco voice-enabled router.

The dial-peer voice 2 voip command notifies the router that dial peer 2 is a VoIP dial peer with

a tag of 2. The destination-pattern 8888 command notifies the router that this dial peer defines

an IP voice path across the network for telephone number 8888. The session target

ipv4:10.18.0.1 command defines the IP address of the router that is connected to the remote

telephony device.

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Cisco GRP Bedienungsanleitung Seite 9