Specifications

Engineering Guidelines
62
5560 IPT Limits
The 5560 IPT is supported on three platform types, the CX/CXi II, the MXe (both the MXe II
and MXe III expanded versions), and the MXe Server (and all commercial servers, including
MiVoice Business for ISS and Virtual MiVoice Business). Because of the typical use of this
device, in an extremely high traffic environment, there are restrictions on the number of these
appliances which can be deployed on the various systems. The servers can support a maximum
of 125 devices, the MXe 32, and the CX/CXi-II only eight.
The 5560 IPT is normally used in key-system mode, and the number of devices supported will
be reduced by shared line or trunk appearances on the keys. Similarly a high traffic rate (short
call hold time) will reduce the number of devices that can be supported. The following table
shows examples of the interaction of these factors for each of the system types. The highlighted
rows indicate typical traffic of 120 calls per hour per user, or 30 second hold time per call.
Table 23: Impact of Shared Line Appearances and Traffic Rates on
Number of 5560 IPT Supported
Controller Type
Number of sets
(users)
Shared Line
Appearances
CPH per user
Equivalent Call
hold time (sec)
MXe Server 125 12 60 60
100 16 60 60
50 44 60 60
125 2 120 30
100 6 120 30
50 16 120 30
125 1 150 24
100 3 150 24
50 12 150 24
100 1 240 15
50 8 240 15
MXe III 32 1 60 60
16 10 60 60
16 1 120 30
16 0 140 25
8 4 180 20
8 1 240 15
MXe II 32 0 36 100
16 2 60 60
10 0 120 30
849040
8 0 144 25