AirTies WAV-140 User Manual page 50

What is QoS? How different is the QoS feature in the WAV-140?
QoS (Quality of Service) gives priority to certain types of data packets being transferred
between a local network and the Internet.
If both Internet access and a phone call is taking place on the ADSL line simultaneously,
WAV-140 gives priority to your phone call and transmits voice packets before any other packet
types (such as web, ftp, or mail).
QoS on the WAV-140 is designed to be duplex where it also gives priority to the incoming voice
packets.
Is it secure to make phone calls over the Internet? What kind of security is provided while
my voice is being transmitted over the Internet?
It is secure to make phone calls with WAV-140 over the ADSL line. Since the WAV-140 is an “all-
in-one” solution (ADSL router and Voice gateway ), the phone call is transmitted directly to the
VoIP service provider's backbone over the Telecom ATM backbone.
How do I reset the WAV-140 to factory settings?
To reset your AirTies WAV-140 settings to the default values, press and hold the “Reset” button
on the back panel for several seconds with the tip of a pencil or a similar pointed object. If you
press the “Reset” button for 5 seconds, all settings (ADSL, NAT, etc.) except the VoIP settings
will be reset. If you press the “Reset” button for 20 seconds all settings will be reset. In this case,
you will need to reenter the VoIP settings.
What is the bandwidth required and used for each call?
WAV-140 supports the G.729 codec for voice calls and uses 24Kbps of bandwidth.
How many simultaneous calls can be made?
With the WAV-140, only one call can be made at a time (either over the Internet or the regular
phone line).
Is it possible to use the WAV-140 with PBXes?
Yes, you can connect the WAV-140 to a PBX and have the internal users make outgoing phone
calls using the WAV-140. For this, you must have an outside line with an active ADSL service.
Make the WAV-140 connections as follows:
1.Plug in the outside line to the LINE port of your splitter.
2.Connect the PHONE port of the splitter with the LINE port of the WAV-140.
3.Connect the MODEM port of the splitter with the ADSL port of the WAV-140.
4.Connect the PHONE port of the WAV-140 with an outgoing line port of your PBX.
5.Configure the PBX to send the local, long distance and international phone calls to the outgoing
line port connected to the WAV-140.
I use limited quota ADSL. Will voice calls lead to exceeding my quota?
When you make phone calls over the ADSL line, you will be downloading 24 Kbps. This amount
is too small to fill your quota. In a one hour phone call, you will be downloading approximately
10 MB.
Can I do port forwarding with the WAV-140?
Yes, you can do port forwarding with the NAT (Network Address Translation) feature of the WAV-
140. Data packets sent from the Internet to your global IP address arrive at a certain port of your
router. With Port Forwarding, the incoming traffic is redirected to a machine inside the local
network that has only a local IP address.
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AirTies WAV-140 User Manual