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1.1 Basic System Construction
20 Installation Manual
1.1.6 Recommendations for System Configuration
In order for the VPS to handle calls smoothly, generally there should be 1 VPS port for every 6 trunks
connected to the PBX. If Automated Attendant (AA) service is used, allotting 1 VPS port for every 4
trunks should be sufficient. If the PBX and VPS have heavy traffic and callers cannot reach the VPS
because of congestion, more VPS ports should be added.
Recommendations are outlined in the following charts.
KX-TVM50
* The factory-installed jacks should be sufficient.
KX-TVM200
PBX KX-TVM50
No. of Trunks
No. of Trunks When
Using AA Service
No. of Ports
No. of Optional Port
Cards
1–6 1–4 1
0*
7–12 5–8 2
13–18 9–12 3
1
19–24 13–16 4
25–30 17–20 5
2
31–36 21–24 6
PBX KX-TVM200
No. of Trunks
No. of Trunks When
Using AA Service
No. of Ports
No. of Optional Port
Cards
1–6 1–4 1
1
7–12 5–8 2
13–18 9–12 3
19–24 13–16 4
25–30 17–20 5
2
31–36 21–24 6
37–42 25–28 7
43–48 29–32 8
49–54 33–36 9
3
55–60 37–40 10
61–66 41–44 11
67–72 45–48 12