
90 Chapter 5 Configuring application resources
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IP telephones
9 What is the maximum number of IP telephones required?
The range is 0 to 90 IP telephones.
For each IP telephone:
• add 1 to the signaling channel count
10 How many IP telephones will be calling an analog or digital telephone or using a PSTN trunk
during peak periods?
The range is 0 to the maximum number of IP telephones selected in question 9.
For each IP telephone:
• add 1 to the media channel count
• add 1 to the voice bus path count
11 How many IP telephones specified in question 10 will be using the G.711 codec?
The range is 0 to the maximum number of IP telephones selected in question 10.
For each IP telephone:
• add 1 to the DSP resource unit count
12 How many IP telephones specified in question 10 will be using the G.729 codec?
The range is 0 to the maximum number of IP telephones selected in question 11.
For each IP telephone:
• add 3 to the DSP resource unit count
13 How many IP telephones specified in question 10 will be using the G.723 codec?
The range is 0 to the maximum number of IP telephones selected in question 11.
For each IP telephone:
• add 4 to the DSP resource unit count
IP Trunks
14 What is the maximum number of IP trunks required?
The range is 0 to 60 IP trunks.
Note: The G.729 DSP resource unit count is rounded to ease calculations. For a more
accurate DSP resource unit count, refer to the table in “DSP resources rules” on
page 86.
Note: The G.723 DSP resource unit count is rounded to ease calculations. For a more
accurate DSP resource unit count, refer to the table in “DSP resources rules” on
page 86.
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