In this example, there are 3 PBXs in a One-look network.
Master Unit
Slave Unit A
- Number of Extensions: 100
- Extension Type: IP-PT
- Number of Simultaneous Calls: 26
Slave Unit B
- Number of Extensions: 50
- Extension Type: SIP Phone
- Number of Simultaneous Calls: 12
IP Network BIP Network A
Codec: G.711
Packet Interval: 20 ms
Bandwidth assessment for IP network A:
• Bandwidth required for VoIP communication
= Number of simultaneous calls ´ 2 ´ Required bandwidth for codecs
(kbps)
= 26 ´ 2 ´ 80
= 4160 kbps
• Bandwidth required for signalling
= Number of simultaneous calls ´ Signalling bandwidth per a call for IP telephones (except SIP phones)
(kbps)
= 26 ´ 43.0
= 1118.0 kbps
• Total required bandwidth for IP network A
= Bandwidth required for VoIP communication (kbps) + Bandwidth required for signalling (kbps)
= 4160 + 1118.0
= 5278.0 kbps
Bandwidth assessment for IP network B:
• Bandwidth required for VoIP communication
= Number of simultaneous calls ´ 2 ´ Required bandwidth for codecs (kbps)
= 12 ´ 2 ´ 80
= 1920 kbps
• Bandwidth required for signalling
Number of simultaneous calls ´ Signalling bandwidth per a call for SIP phones (kbps)
= 12 ´ 16
= 192 kbps
• Total required bandwidth for IP network B
= Bandwidth required for VoIP communication (kbps) + Bandwidth required for signalling (kbps)
= 1920 + 192
= 2112 kbps
Required Items
• KX-NSN001: Activation Key for One-look Network (One-look Network)
Networking Notes
• When setting up a PBX using Easy Setup Wizard, you specify whether the PBX will be the Master unit or
a Slave unit. For more details, refer to "5.4.1 Easy Setup Wizard".
Installation Manual 361
8.4.1 One-look Network
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