Nortel Networks NN43001-504 - Manual (Page 83)

NAT 83
Note 2: No patch is required for SRG 1.0 based on BCM 3.7 or SRG50
systems
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 177) . 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).
Nortel Communication Server 1000
WLAN IP Telephony Installation and Commissioning
NN43001-504 01.02 Standard
Release 5.0 15 June 2007
Copyright © 2004-2007, Nortel Networks
.