Nortel Networks Recording Equipment 1 User Manual
Voice over Wireless LAN Solution Guide
v1.0
December 2005
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Page 9
2.1 Applications
Following is a brief description of the various voice applications.
2.1.1 WLAN
Handset 2210/11/12 voice
The WLAN Handsets 2210, 2211, and 2212 work only in a Nortel Succession 3.0 (and later)
environment coordinated with a Communication Server (CS) 1000 or Meridian 1. These handsets
communicate with the Nortel call server through the Unified Network IP Stimulus (UNIStim)
protocol. The media path of the voice call goes from the handset directly to the destination device
(through the WLAN Telephony Manager 2245). In addition, the handset encapsulates all traffic in
the SpectraLink Voice Priority (SVP) protocol. The WLAN Telephony Manager (WTM) 2245
decapsulates the VoIP traffic from SVP and passes it onto the network—it does not translate
between UNIStim and SVP. Hence the WTM 2245 is in the path of all communication to and from
the handset. Likewise, signaling goes from handset to WTM 2245 to call server.
environment coordinated with a Communication Server (CS) 1000 or Meridian 1. These handsets
communicate with the Nortel call server through the Unified Network IP Stimulus (UNIStim)
protocol. The media path of the voice call goes from the handset directly to the destination device
(through the WLAN Telephony Manager 2245). In addition, the handset encapsulates all traffic in
the SpectraLink Voice Priority (SVP) protocol. The WLAN Telephony Manager (WTM) 2245
decapsulates the VoIP traffic from SVP and passes it onto the network—it does not translate
between UNIStim and SVP. Hence the WTM 2245 is in the path of all communication to and from
the handset. Likewise, signaling goes from handset to WTM 2245 to call server.
The WLAN Handset 2212 adds Virtual Private Network (VPN) capabilities to the handset
portfolio. It is a more durable version of the 2210 handset, and includes features such as backlit
display for night shifts and liquid resistance. The 2211 handset is the most durable and remains
the only handset in the portfolio that supports Push-to-Talk (PTT). The VPN features and PTT are
discussed later in this guide.
portfolio. It is a more durable version of the 2210 handset, and includes features such as backlit
display for night shifts and liquid resistance. The 2211 handset is the most durable and remains
the only handset in the portfolio that supports Push-to-Talk (PTT). The VPN features and PTT are
discussed later in this guide.
2.1.2 IP Softphone 2050
The IP Softphone 2050 is a voice application that runs on a regular PC or laptop. This has the
advantage of making the voice application itself decoupled from any particular hardware or radio.
Therefore, an IP Softphone 2050 can place calls over the higher-bandwidth 802.11a or 802.11g
network if the laptop has an 802.11a or 802.11g Network Interface Card (NIC). The Softphone
uses UNIStim for signaling to a Succession call server, but does not support SVP for QoS, and
consequently does not utilize the WTM 2245. The underlying device driver is responsible for
implementing QoS features such as WMM.
advantage of making the voice application itself decoupled from any particular hardware or radio.
Therefore, an IP Softphone 2050 can place calls over the higher-bandwidth 802.11a or 802.11g
network if the laptop has an 802.11a or 802.11g Network Interface Card (NIC). The Softphone
uses UNIStim for signaling to a Succession call server, but does not support SVP for QoS, and
consequently does not utilize the WTM 2245. The underlying device driver is responsible for
implementing QoS features such as WMM.
The IP Softphone 2050 is supported on the following operating systems:
Microsoft Windows 98
Microsoft Windows 98 SE
Microsoft Windows XP Professional
Microsoft Windows XP Home
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Professional Service Pack 1
Microsoft Windows 2000 Professional Service Pack 2
Microsoft Windows 98 SE
Microsoft Windows XP Professional
Microsoft Windows XP Home
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Professional Service Pack 1
Microsoft Windows 2000 Professional Service Pack 2
2.1.3 Mobile Voice Client (MVC) 2050
The Mobile Voice Client (MVC) 2050 is also a UNIStim-based voice client that runs on a Pocket
PC Personal Digital Assistant (PDA). The MVC 2050 does not support SVP and consequently
does not utilize the WTM 2245. Signaling and voice bypass the WTM 2245, going directly to call
server and destination voice device respectively.
PC Personal Digital Assistant (PDA). The MVC 2050 does not support SVP and consequently
does not utilize the WTM 2245. Signaling and voice bypass the WTM 2245, going directly to call
server and destination voice device respectively.
The MVC 2050 is supported on Microsoft Windows Mobile 2003 and Microsoft Windows Mobile
2003 SE on the following PDAs:
2003 SE on the following PDAs:
Dell Axim X50v