Nortel SCS User Manual

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Nortel SCS User Manual Manual pdf 15 page image

Common configurations2007 Nortel Software Communication System v1.0 Page 3Common configurationsBefore you start to install SCS, you must understand your network and the information required with respect to network services.Ensure you obtain and understand the answers to the following questions:• Do you have an existing DNS server?• If yes, can you configure SRV records on the existing DNS server?• Do you have an existing NTP server?• Do you have an existing DHCP server?• If yes, can you set up DHCP Option 66 for TFTP to point at SCS?Within your network, DNS, NTP, and DHCP servers can exist. If these servers are not present, SCS can fill any of these rolls if setupduring installation to do so.The following table shows reference configurations for each possible setup. In the DNS, NTP, and DHCP columns, Yes means theservice will be provided by SCS.The following notes describe each customer configuration.Configuration A (DNS=Y, NTP=Y, DHCP=Y)• Plug and Play setup.Note: For Plug and Play configuration, you only enter the MAC address of the phone and configure a user.• Phones will configure themselves using SCS.Configuration B (DNS=Y, NTP=Y, DHCP=N)• SCS handles name resolution and SRV queries. Phones and soft client PCs should use SCS as DNS server.• Requires DHCP server or static IP address configuration.• If DHCP does not have Option 66 configured to point to the SCS, then you must manually configure the TFTP server address on thetelephone for provisioning.Configuration C (DNS=N, NTP=Y, DHCP=N)• DNS server should have SRV records configured to point at the SCS server. If SRV records cannot be configured, use the FullyQualified Domain Name (FQDN) for the SIP domain during system installation.• Requires DHCP server or static IP address configuration.• If DHCP does not have Option 66 configured to point to the SCS, then you must manually configure the TFTP server address on thetelephone for provisioning.Configuration DNS NTP DHCP ScreenA Yes Yes YesB Yes Yes NoC No Yes NoD No Yes YesE No No NoF Yes No NoG No No Yes