Lantech LGS-2624C, User Manual, Page: 125 / 279

Additional code - Example: 1320300003.
Emergency Call Service
Emergency Call Service (e.g. E911 and others), such as defined by TIA or
NENA.
Emergency Call Service
Emergency Call Service ELIN identifier data format is defined to carry the
ELIN identifier as used during emergency call setup to a traditional CAMA
or ISDN trunk-based PSAP. This format consists of a numerical digit string,
corresponding to the ELIN to be used for emergency calling.
Policies
Network Policy Discovery enables the efficient discovery and diagnosis of
mismatch issues with the VLAN configuration, along with the associated
Layer 2 and Layer 3 attributes, which apply for a set of specific protocol
applications on that port. Improper network policy configurations are a very
significant issue in VoIP environments that frequently result in voice quality
degradation or loss of service.
Policies are only intended for use with applications that have specific 'real-
time' network policy requirements, such as interactive voice and/or video
services.
The network policy attributes advertised are:
1. Layer 2 VLAN ID (IEEE 802.1Q-2003)
2. Layer 2 priority value (IEEE 802.1D-2004)
3. Layer 3 Diffserv code point (DSCP) value (IETF RFC 2474)
This network policy is potentially advertised and associated with multiple
sets of application types supported on a given port. The application types
specifically addressed are:
1. Voice
2. Guest Voice
3. Softphone Voice
4. Video Conferencing
5. Streaming Video