3 network infrastructure considerations, 1 physical connections, Network infrastructure considerations – Polycom H340 User Manual

Page 15: Physical connections, Best practices guide

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Deploying SpectraLink e340, h340 and i640 Wireless Telephones

BEST PRACTICES GUIDE

October 2010

3 Network Infrastructure Considerations

3.1 Physical Connections

SpectraLink infrastructure components, including the SVP Server(s), Telephony Gateways and OAI Gateway, must

connect to a facility’s LAN using enterprise-grade Ethernet switches rather than Ethernet hubs or consumer-grade

SOHO switches in order to provide adequate bandwidth and limit traffic collisions and bottlenecks (see Figure 4 for

reference).

Ethernet switches should be configured to statically set the speed and duplex values as appropriate for the device

being connected to that port. The SVP Server should be set to the 100Base-T/Full Full-duplex transmission setting.

This is required to support the maximum simultaneous voice calls and for optimal system performance. The

SpectraLink Telephony Gateway and OAI Gateway products utilize a 10Base-T, half-duplex Ethernet interface and the

Ethernet switch ports should be set accordingly.

Network wiring is an important component of any Ethernet-based system and is subject to local and state building code

specifications. Cat 5 or better, 4-pair 10/100 Base-T Ethernet cabling must be used for SpectraLink infrastructure

equipment.

Wireless bridges are sometimes used to interconnect geographically isolated Ethernet LANs or to extend the range

of existing WLANs. Such devices create bottlenecks for network capacity and add delay to the overall network, which

are generally not tolerable for real-time voice connections. Polycom does not support a configuration that includes

wireless bridges and does not recommend using wireless bridges with any wireless network supporting voice.

Figure 4 – Physical Connections

This manual is related to the following products:

I640