Prerequisites for Configuring Cisco Unified CME
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Base Cisco Unified CME feature license and phone user licenses that entitle you to use Cisco Unified CME are purchased.
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To support H.323 call transfers and forwards to network devices that do not support the H.450 standard, such as Cisco Unified Communications Manager, a tandem gateway is required in the network. The tandem gateway must be running Cisco IOS release 12.3(7)T or a later release and requires the Integrated Voice and Video Services feature license (FL-GK-NEW-xxx), which includes H.323 gatekeeper, IP-to-IP gateway, and H.450 tandem functionality. |
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Your IP network is operational and you can access Cisco web.
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You have a valid Cisco.com account.
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You have access to a TFTP server for downloading files.
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Cisco router with all recommended services hardware for Cisco Unified CME is installed. For installation information, see Install Cisco Voice Services Hardware.
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Recommended Cisco IOS IP Voice or higher image is downloaded to flash memory in the router.
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To determine which Cisco IOS software release supports the recommended Cisco Unified CME version, see Cisco Unified CME and Cisco IOS Software Compatibility Matrix.
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For a list of features for each Cisco IOS Software release, see Feature Navigator.
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For installation information, see Install Cisco IOS Software.
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VoIP networking must be operational. For quality and security purposes, we recommend separate virtual LANs (VLANs) for data and voice. The IP network assigned to each VLAN should be large enough to support addresses for all nodes on that VLAN. Cisco Unified CME phones receive their IP addresses from the voice network, whereas all other nodes such as PCs, servers, and printers receive their IP addresses from the data network. For configuration information, see Configure VLANs on a Cisco Switch.