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NAT 77
For more information about SRG, see Main Office Configuration Guide for
Survivable Remote Gateway 50 (NN43001-307),.
External Applications Server
The External Applications Server (XAS) applications are not available on
the handsets.
End-to-end QoS
End-to-end QoS, such as DiffServ, and Layer 2 QoS, such as 802.1
Qp, are not supported on the wireless telephone system. Any UNIStim
commands sent to the wireless handsets attempting to adjust Layer 2 or
Layer 3 QoS parameters are ignored.
However, the WLAN IP Telephony Manager 2245 can tag packets with a
Differentiated Services Code Point (DSCP) tag. For more information, see
“Quality of Service” (page 170). You can also provide QoS mechanisms
through the configuration of network equipment.
The Layer 2 switch port to which the WLAN IP Telephony Manager 2245
is connected can be configured to add 802.1 Qp tagging. The Layer 3
port that acts as the gateway for the WLAN IP Telephony Manager 2245
can be configured to add the appropriate DiffServ tagging. Since all of
the signaling and media traffic passes through the WLAN IP Telephony
Manager 2245, all packets are tagged with the appropriate priority. If more
than one WLAN IP Telephony Manager 2245 is used, each Layer 2 port
to which a WLAN IP Telephony Manager 2245 is connected must be
configured to add the 802.1 Qp tagging.
NAT
Handsets can be deployed in an Network Address Translation (NAT)
environment.
This section describes important considerations that must be taken into
account when using the handsets in a NAT environment. Failure to
comply with or heed these considerations can result in wireless handset
malfunction.
For detailed information about NAT and the NAT Traversal feature, see IP
Line Fundamentals (NN43001-500),.
NAT Traversal feature
The NAT Traversal feature is used where the IP Phone (this includes the
handsets) is located on the private side of the NAT router, while the rest of
the Server resides on the public side.
Nortel Communication Server 1000
WLAN IP Telephony Installation and Commissioning
NN43001-504 03.04 Standard
23 September 2008
Copyright © 2004–2008 Nortel Networks
.