SpectraLink NetLink 8020 Manuale utente
FIELD VERIFIED
Avaya Wireless AP-3, AP-4 Access Points
This document details the specifications for configuring the Avaya Wireless AP-3, AP-4
series access points (APs) with NetLink Wireless Telephones.
Product Summary
Manufacturer: Avaya
Approved product(s): Avaya Wireless AP-3, AP-4
RF technology: Direct-sequence spread spectrum (DS), 2.4 GHz
AP software version: Firmware version 2.5.5/3.1.0 †
NetLink handset models: e340/h340/i640 8000 Series
NetLink radio mode: 802.11b 802.11b
Maximum telephone calls per AP: 12 *
AP configuration parameters: See
Access Point Configuration
below
Indoor range (typical): See vendor specifications for AP
Required network topology: Switched Ethernet
Network constraints: Dedicated segment for wireless, single subnet
WEP capability: Yes *
ESSID auto-learn function: Yes *
† Earlier and later software versions have not been tested for the NetLink SVP Server compliance, except
as noted. Refer to
NetLink Wireless Telephone WLAN Compatibility List
for field-verified AP software
versions.
* Telephone calls per AP must be configured in the system per documentation provided by SpectraLink.
WEP and Automatic Learn are programmed into each handset in addition to being configured in the AP.
NetLink Wireless Telephones
NetLink Wireless Telephones use voice over IP technology on IEEE 802.11b-
compatible wireless local area networks (WLANs). Access points utilize radio
frequencies to transmit signals to and from the NetLink Wireless Telephones.
Access Point Capacity and Positioning
Each site is unique in its AP requirements. Please take the following points into account
when determining how many APs are needed and where they should be placed in the
facility.
Handset range
There must be wireless LAN coverage wherever NetLink Wireless Telephones will be
used. The typical range for a NetLink Wireless Telephone is comparable to that of a
laptop computer utilizing a wireless LAN PC card. However, NetLink Wireless
Telephones are likely to be used in areas where data devices are not typically used, such
Copyright © 2002 to 2007 SpectraLink Corporation. All rights reserved.
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FIELD VERIFIED
as stairwells and outdoor areas. NetLink Wireless Telephones have a Site Survey mode
that displays dBm levels to determine adequate WLAN coverage. Refer to the
NetLink
Wireless Telephone Configuration and Administration
document for details about this
feature.
Number of handsets per access point
Estimate the number of NetLink Wireless Telephones and their anticipated call volume
per AP area to ensure that the maximum number of calls per AP will not be exceeded. In
this estimate, consider the data rates at which the handsets will operate. Higher data rates
can only be sustained while well within the range of the AP. If the NetLink Wireless
Telephones will be operating near the limits of the RF coverage from the AP, they will
automatically drop to 1 Mb/s operation. NetLink Wireless Telephones require
approximately 15% of the available bandwidth per call for 1 Mb/s operation,
approximately 10% of the available bandwidth per call for 2 Mb/s operation,
approximately 7% of the available bandwidth per call for 5.5 Mb/s operation, and
approximately 5% of the available bandwidth per call for 11Mb/s operation.
Note: the maximum number of telephone calls per AP quoted in the summary table
above is based on 11 Mb/s operation, and will be reduced if some or all NetLink
Wireless Telephones are operating at 1, 2, or 5.5 Mb/s.
LAN bandwidth
Estimate anticipated peak call volume to ensure that the LAN has enough bandwidth
available to handle the network traffic generated by all of the wireless devices. Network
traffic can be monitored/analyzed using a network sniffer or a simple network
management protocol (SNMP) workstation.
Number of other wireless devices per AP
The NetLink Wireless Telephones share bandwidth with other wireless devices. To
ensure adequate RF bandwidth availability, consider the number of wireless data devices
in use per AP.
Notes on Configuration
The AP must support SpectraLink Voice Priority (SVP). Contact your AP
vendor if you need to upgrade the AP software.
If you encounter difficulties or have questions regarding the configuration process,
please contact the Customer Support Hotline at (800) 775-5330. The hotline is open
Monday through Friday, 6 a.m. to 6 p.m. Mountain time.
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FIELD VERIFIED
Access Point Configuration
1. Connect to the AP via Netscape or Internet Explorer by navigating to the URL
http://<IP_Addr> (where <IP_Addr> is the IP address of the AP). Note: these
configuration steps can also be accomplished using the SNMP-based
Avaya/Orinoco ScanTool program.
2. From the main page, click the Configure link.
3. To configure WEP settings, obtain the key values from the local network
administrator and use the
Avaya AP-3, AP-4 User Guide
for guidance in
programming the encryption settings. The WEP configuration screen is reached
from the main menu by clicking Configure, followed by Security, followed by
Encryption.
Note that the NetLink Wireless Telephones must each be configured manually with
the identical WEP settings.
4. Click Configure, then click the Interfaces tab and choose the appropriate radio (Slot
Aor Slot B) to configure.
5. From the Interfaces tab confirm that the RTS/CTS Medium Reservation Threshold
is greater than 600 or disabled.
6. Set the Multicast Transmit Rate to 11Mb/s.
7. Next go to the Bridge tab, select SpectraLink VoIP to ensure that SpectraLink Voice
Priority (SVP) is enabled.
Conditional: If the AP’s software version is 2.5.xx or later, SVP must be activated
using the Avaya command line interface (CLI).
Connect to the access point via serial interface or Telnet.
8. To check to see if SVP is enabled:
Type show spectralink, then press Enter; it will display enabled or disabled.
To enable SVP:
Type set speclinkstatus enable, then press Enter.
Conditional: If you are not using a NetLink SVP Server and intend to use 802.11b/g
mode, you must also enter the command:
Type set speclinklegacysupport,then press Enter.
9. From the Bridge tab, select Advanced Filtering. Enable the Proxy ARP function and
disable IP/ARP Filtering.
10. From the Commands tab, restart the AP.
The AP is now ready for use with NetLink Wireless Telephones.
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