User Manual

Chapter 18 Product Specifications
User’s Guide
182
Firmware update
enable / disable
If your service provider uses this feature, you hear a recorded
message when you pick up the phone when new firmware is available
for your WiMAX Modem. Enter *99# in your phone’s keypad to have
the WiMAX Modem upgrade the firmware, or enter #99# to not
upgrade. If your service provider gave you different numbers to use,
enter them instead. If you enter the code to not upgrade, you can
make a call as normal. You will hear the recording again each time
you pick up the phone, until you upgrade.
Call waiting This feature allows you to hear an alert when you are already using
the phone and another person calls you. You can then either reject
the new incoming call, put your current call on hold and receive the
new incoming call, or end the current call and receive the new
incoming call.
Call forwarding With this feature, you can set the WiMAX Modem to forward calls to a
specified number, either unconditionally (always), when your number
is busy, or when you do not answer. You can also forward incoming
calls from one specified number to another.
Caller ID The WiMAX Modem supports caller ID, which allows you to see the
originating number of an incoming call (on a phone with a suitable
display).
REN A Ringer Equivalence Number (REN) is used to determine the number
of devices (like telephones or fax machines) that may be connected
to the telephone line. Your device has a REN of three, so it can
support three devices per telephone port.
QoS (Quality of
Service)
Quality of Service (QoS) mechanisms help to provide better service
on a per-flow basis. Your device supports Type of Service (ToS)
tagging and Differentiated Services (DiffServ) tagging. This allows
the device to tag voice frames so they can be prioritized over the
network.
SIP ALG Your device is a SIP Application Layer Gateway (ALG). It allows VoIP
calls to pass through NAT for devices behind it (such as a SIP-based
VoIP software application on a computer).
Other Voice
Features
SIP version 2 (Session Initiating Protocol RFC 3261)
SDP (Session Description Protocol RFC 2327)
RTP (RFC 1889)
RTCP (RFC 1890)
Voice codecs (coder/decoders) G.711, G.726, G.729
Fax and data modem discrimination
DTMF Detection and Generation
DTMF: In-band and Out-band traffic (RFC 2833),(PCM), (SIP INFO)
Point-to-point call establishment between two IADs
Quick dialing through predefined phone book, which maps the phone
dialing number and destination URL.
Flexible Dial Plan (RFC3525 section 7.1.14)
Table 69 Voice Features

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