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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

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Nortel Networks NN43001-504 manual External Applications Server, End-to-end QoS