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Configuring Emergency Services 69
To ensure that emergency calls always go through, a set of system-wide
defaults are defined — the callback phone number and an emergency
gateway, identified by its IP address. These system defaults are used for
phones which are not part of any ELIN.
The emergency dialable digits are controlled by the ERL screens. If the
emergency digits are identified by an ERL then those emergency
dialable digits will not be applied a Class of Service treatment. Just
because a Class of Service Element is named Emergency and is
blacklisted does not mean that Emergency calls will not go through.
Adding ERLs When ERLs are configured, you can configure Emergency Location
Identification Numbers (ELIN), which are assigned through an
emergency services administrator.
To add an ERL:
1 From the left-hand side of the Users main page, click the Emergency
Services heading.
The Emergency Response Locations page appears. See Figure 17.
Figure 17 Emergency Defaults and Emergency Response Locations Window