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WLAN IP Telephony Manager 2245 failure
After the initial registration, if a WLAN IP Telephony Manager 2245 units
fails, the following occurs:
1. The wireless handset drops active calls.
2. The wireless handset then re-registers with another WLAN IP
Telephony Manager 2245 units.
3.
The wireless handset returns to the active state.
The recovery period is approximately 60 seconds.
The WLAN IP Telephony Manager 2245 failure has no effect on other
wireless handsets registered to other WLAN IP Telephony Manager 2245
units.
Group capacities
The number of calls that an individual WLAN IP Telephony Manager 2245
can support is dependent on the number of WLAN IP Telephony Manager
2245 units in the subnet. Assuming that a 100 Mb/s full-duplex connection
to the network exists, a single stand-alone WLAN IP Telephony Manager
2245 unit can manage up to 80 active calls. If two WLAN IP Telephony
Manager 2245 units are installed , each can support up to 64 active calls
for a total of 128 calls.
Table 3 "Multiple WLAN IP Telephony Manager 2245-80 capacities" (page
54) lists the call capacities for WLAN IP Telephony Manager 2245-80
groups. Table 4 "Multiple WLAN IP Telephony Manager 2245-10 and
2245-20 capacities" (page 55) lists the handset capacities for WLAN IP
Telephony Manager 2245-10 and 2245-20 groups.
Table 3
Multiple WLAN IP Telephony Manager 2245-80 capacities
Number of
WLAN IP
Telephony
Manager
2245
units
Calls per
WLAN IP
Telephony
Manager
2245
units
Total
calls Erlangs
Number of
wireless
handsets
10% use
Number of
wireless
handsets
15% use
Number of
wireless
handsets
20% use
1 80 80 65 500 433 325
2 64 128 111 1000 740
555
3 60 180 160 1500 1067 800
4 58 232 211 2000 1407 1055
557
285 262 2500 1747 1310
6 56 336 312 3000 2080 1560
7
56 392 367 3500 2447 1835
Nortel Communication Server 1000
WLAN IP Telephony Installation and Commissioning
NN43001-504 03.04 Standard
23 September 2008
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.