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1.3 SYSTEM BASICS
22 Installation Manual
1.3.7 Expansion Capabilities
Expansion requires additional port card(s): KX-TVP102 or KX-TVP204.
• The KX-TVP102 card has 2 digital/analogue ports, and the ports are increased in
increments of 2.
• The KX-TVP204 card has 4 digital ports, and the ports are increased in increments of 4.
1.3.8 Recommendations for System Configuration
General guideline: a ratio of 6/1 (for every 6 lines, 1 port). There are 2 questions to ask when
considering how many ports are desirable:
• Are the ports answering all incoming calls or just forwarded/transferred calls?
• If they are answering incoming calls, how busy are the lines?
The guideline above (6/1) usually works well with moderate traffic. However, this may have to
be modified for heavy traffic. Recommendations are outlined in the following charts.
One port may not support an Automated Attendant configuration with 5 outside (CO) lines. The
preceding recommendations for Automated Attendant ports may have to be modified for heavy
traffic.
Outside (CO) Lines Port
1-6 1
7-12 2
13-18 3
19-24 4
25-30 5
31-36 6
37-42 7
43-48 8
49-54 9
55-60 10
61-66 11
67-72 12
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