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Chapter 1 - Description and Specifications
Multi-Tech Systems, Inc. MultiModem CDMA User Guide 5
AT Command Info
AT commands for the CDMA wireless modem are published in a separate Reference Guide included on
the product CD and posted on the Multi-Tech web site.
Phone Number for the Wireless Modem
Every wireless modem will have its own unique phone number.
Network Access
The network access arrangements to be specified in Windows Dial-Up Networking (of the computer that
the wireless modem is serving) will vary according to the type of wireless service used.
• For point to point data, a circuit-switched data connection is used. The user can set up DUN to make
a conventional V.32bis modem connection to any terminating modem at the other end. The phone
number specified in DUN can be one supplied by the wireless service provider or another phone
number related to a different dialup modem service (e.g., a dialup modem service phone number from
any commercial or private dialup network).
• For CDMA 1x data, a single DUN number is generally used by all of a wireless provider’s subscribers
throughout its area of coverage (regional, nationwide, continental, etc.). Rather than being a literal
phone directory number, as in conventional DUN, this is a code that gives the modem Internet
access.
Features
• CDMA2000 1xRTT operation
• Dual-band 800/1900 CDMA
• 800 MHz with R-UIM support
• Class 2.0 Group 3 FAX
• Desktop or panel mounting
• Short Message Service features including SMS mobile originated, SMS mobile
terminated, cell broadcast, Over the Air Activation (OTA), OTASP, OTAPA
• Voice features include DTMF, telephony, OCELP 13K, echo cancellation
• SMA antenna connector
• Serial interface supports DTE speeds to 230K
• AT command compatible
• CDMA IS-95-A, IS-95B; backwards compatible
• Packet data up to 153K bps forward and reverse
• Circuit-switched data up to 14.4K bps
• Phone book management and Personal Information Management (PIM)
• Fixed dialing number
• Supplementary services including call forwarding, call barring, multiparty, call
waiting and call hold, calling line identification, closed user group, call transfer
• Numerous LEDs present operational status
• Real time clock
• Alarm management