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Chapter 3 Domain Management 25
SIP Provisioning Client User Guide
[Standard - Nortel Networks Confidential]
Figure 12 Domains and subdomains
Foreign domain
A foreign domain is a domain that is not served by any SIP Application Modules
in your system. When adding a domain, you must determine whether or not the
domain is a foreign domain or not. A foreign domain uses foreign routes, while a
local domain uses SIP routing or telephony routes.
A domain that is not local is considered foreign. Usually, a foreign domain is
resolved through DNS and would not need to be provisioned. However, since
some deployment scenarios may not involve a DNS server, you (as the system
administrator) can datafill routes for a foreign domain.