Nortel Networks NN43001-504 - Manual (Page 79)

Codecs 79
OR
PRT IPDN
Alias IP address
Using the DN of a wireless handset, support personnel can obtain the
current or most recent alias IP address used by a wireless handset when it
checked in with the master of a WLAN IP Telephony Manager 2245 group,
and subsequently registered with the LTPS and Call Server.
=> PRT DNIP
Wireless telephone type designation
Unless there is another preferred use for the DES (Designator) prompt in
LD 11, Nortel recommends using the DES prompt to indicate the type of
WLAN Handset—either type 2210, 2211, 2212, or 6120—for the i2004
type of virtual line TN. This allows support personnel to enter 2210, 2211,
2212 or 6120 at the LD 20 DES prompt and receive a list of handsets that
are configured on the Call Server.
Call blocking
The WLAN IP Telephony Manager 2245 controls the media stream and
blocks calls due to bandwidth constraints on any AP without notifying the
Call Server.
• The WLAN IP Telephony Manager 2245 can be configured with the
maximum number of simultaneous calls allowed on a single AP.
• On an incoming call for a wireless handset associated with a full AP, the
caller hears ringback and the Call Forward No Answer (CFNA) treatment
is applied, such as forwarding the call to voice mail. The called party is
not notified of the incoming call.
• If the call originates from a wireless handset that is on a
bandwidth-restricted AP, the caller hears a warning tone and the call
is blocked.
• If a wireless handset moves into an area serviced by an AP that is
already at capacity, the wireless handset does not associate with the
new AP. Instead, the wireless handset attempts to remain associated
with an AP that has sufficient bandwidth. This could result in packet
loss, degraded signal and voice quality, and a call could be dropped.
• UNIStim signaling, such as watchdog updates or lamp audit, are not
affected by the bandwidth constraint.
Codecs
G.711, G.729A, and G.729B codecs are supported. The RTP packets that
transit between the wireless handsets and the WLAN IP Telephony Manager
2245 always contain 30 ms of voice. The WLAN IP Telephony Manager
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
.