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MultiModemUSB User Guide
PhoneTools Features
Using the PhoneTools communications program included with your modem, you can:
•
Upload and download data files.
•
Send faxes at preset times.
•
Store incoming voice messages and faxes.
•
Retrieve stored messages, faxes, and telephone numbers (telephone number retrieval requires
Caller ID service from your telephone company).
•
Print a received fax.
For detailed information about operating your modem under PhoneTools, please refer to the PhoneTools
documentation included on the MT5634ZBA-USB CD.
V.92 Operation
Because the V.92 protocol is new and still largely unsupported by central servers, some features are
disabled by default in the initial release of the MT5634ZBA-USB modem. This section describes the
status of the V.92 features in the initial release. Please note that the V.92 special features require
connection to a V.92-capable server.
•
General. The V.92 protocol is enabled by default. If the MultiModemZBA-USB detects another
V.92 modem during the handshake phase, they will connect in V.92 mode; otherwise, they will
connect in V.90 mode or the highest mutually acceptable mode. The AT command that controls
this is +MS=.
•
Commands. AT commands specific to the V.92 protocol and the new V.44 compression protocol
begin with the plus character (+). These commands are in this manual.
•
PCM Upstream. PCM Upstream is disabled by default. To upload files at speeds above 33.6
kbps, you must enable PCM Upstream using the command +PIG=1. Please note that this requires
connection to a V.92-capable server. Also, please note that since upload speeds are affected by
line conditions, meeting the previous requirements cannot guarantee speeds above 33.6 kbps.
•
Quick Connect. Quick Connect, which shortens the handshake time with another V.92 modem, is
disabled by default. To enable it, use the command +PQC=0. Quick Connect speeds connect
times by skipping the line test during the handshake and using the configuration from the last data
connection. Quick Connect works best when line conditions are consistent from call to call. If line
conditions are variable, enabling Quick Connect can actually increase the connect time slightly.
Chapter 3 - Operation
13
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