Cisco IE-3000-8TC Administration Manual page 60

Common Configuration Concepts in Cisco Business Edition 3000
required to contact the central site because their Internet connection provides access to the central site.
You can have only one teleworker site.
When you configure a site, you must specify the maximum bandwidth that is required between sites, the
maximum bandwidth that is required for internal calls that take place within the site, calling privileges for the
site as a whole. You can configure the bandwidth between the remote site and the central site.
You can configure a site by using any of the following methods:
• Through the Cisco-provided .xls data configuration file in the Cisco Business Edition 3000 First Time
Setup Wizard (for initial deployment)
• On the Sites page in the Cisco Business Edition 3000 First Time Setup Wizard (if you are not using the
Cisco-provided .xls data configuration file during initial deployment)
• Under Connections > Sites in the Cisco Business Edition 3000 Administrative Interface (after initial
deployment)
A phone gets associated with a site through the subnet and subnet masks that are configured on the Sites page.
If you are using DHCP to assign IP addresses to the phones, the values that you enter for the subnet and subnet
mask depend on your DHCP configuration. In this case, the subnet and subnet mask translate to a range of
IP addresses that get distributed to the phones that are associated with the site.
Considerations for Configuring Sites
Before you configure your sites and DHCP, Cisco strongly recommends that you determine the number of
sites that you need and how many phones will be located at each site. Configure your DHCP server so that it
correctly distributes the IP addresses to the phones at the various sites.
If you do not configure the subnet and subnet masks for any site, the phones automatically get assigned to the
central site. By default, subnet address 192.168.1.0 with a subnet mask of 24 are displayed on the central site
page. You may update this information if it does not apply to your setup. You cannot enter the same subnet
and subnet mask for multiple sites. In addition, Cisco recommends that your subnet and subnet masks do not
overlap. If you configure multiple subnet and subnet masks on the Sites page, Cisco Business Edition 3000
selects the subnet and subnet mask that is most clearly defined and associates the phone with that site. To
associate phones with the remote sites, you must configure the subnet and subnet masks on the Sites pages
for the remote sites.
If no teleworker site exists and Cisco Business Edition 3000 cannot determine where the phone is located,
Cisco Business Edition 3000 automatically places the phone in the central site. If you have a teleworker site,
you must configure the subnet and subnet masks for the central site and all remote sites. For the teleworker
site, you cannot specify the subnet and subnet masks. It is not uncommon to disallow emergency calls for the
teleworker site. If you disallow emergency calls for the teleworker site, make sure that the users understand
that they cannot place emergency calls from their work phone that is outside of the office.
If you enable Reach Me Anywhere in the usage profile, the call privileges for the Reach Me Anywhere call
are always based on the highest calling privileges that are selected for the central site.
Device Mobility
When you do not configure any remote site in the Cisco Business Edition 3000, the endpoints will register
with the central site even when the endpoint is situated in a different subnet.
The association of the gateway with a site is based on device mobility. Prior to Release 8.6.4, the association
of the gateway with a site was based on device mobility, that is, depending on the PSTN connection and the
subnet of the site. From Release 8.6.4, the device mobility is disabled for the gateways. The gateways must
Administration Guide for Cisco Business Edition 3000, Release 8.6(4)
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