Recommended SMS modems and troubleshooting tips

Ipswitch has tested the following SMS modems for use with the SMS Direct Action (not the SMS Action):

• Motorola® RAZR V3 (Recommended)

  This cell phone was connected to the WhatsUp device acting as a GSM modem.

• MultiModem® GPRS external wireless modem, model: MTCBA-G-F2
• Siemens TC65 Terminal

  Unlike the other modems that have their own drivers to install, this modem did not have specific drivers to install. The Windows Standard 56000 bps modem driver was used with the maximum port speed set to 115200.

• Falcom Samba 75 (GSM/GPRS/EDGE)

  Note: Falcom Samba 75 modem is not supported on Windows Server operating systems.

• Vodaphone USB modem for SMS Direct (tested on Huawei, Model E220, HSDPA USB modem)
• ConiuGo GPRS GSM Quadband Modem / USB-Busp (850, 900, 1800 & 1900 MHz)
• Zoom 56k serial modem

To consider

• GSM networks operate in the 850/900/1800/1900 Mhz bands.
• GSM modems are typically either dual or quad band.

  Note: You must acquire a dual modem that operates at the correct frequency, or purchase a quad band modem.

• European markets typically use 900/1800 Mhz capable devices.
• The U.S. and Canada use 850/1900 Mhz capable devices.

Troubleshooting SMS Modems

If an SMS modem is not working as expected, verify that the communications port (COM port) to which the modem is attached is configured to use settings supported by the modem.

1. In the Windows Control Panel, double-click Device Manager. The Device Manager appears.
2. Expand Ports.
3. Double-click the communications port used by the SMS modem. The Communications Port Properties dialog appears.
4. Select the Port Settings tab.
5. Using the documentation provided by the modem manufacturer, verify that the port settings listed are supported by the modem. If the listed settings are not supported, make any necessary changes.

   Note: If you are using the MultiModem® GPRS external wireless modem, model MTCBA-G-F2, set Flow Control to Hardware.

6. Click OK to save changes.

Using line feeds and carriage returns to correct SMS modem issues

Some SMS Direct enabled phones do not work correctly with SMS Direct Actions because new line characters are not always handled properly. This issue may be corrected by adding the following new registry key entry:

HKEY_LOCAL_MACHINE\SOFTWARE\Ipswitch\Network Monitor\Whatsup plug-ins\Actions\ActSmsDirect\NewLine

In the Value data box, enter a combination of a carriage return (\r) and/or line feed (\n) command. For example enter one of the following:

• newline \r\n (recommended)
• newline \r
• newline \n

See Also Troubleshooting and Maintenance Troubleshooting your network Maintaining the Database Recovering from a "Version Mismatch" error Task Tray Application fails on Windows Vista Connecting to a Remote Desktop WhatsUp Gold engine message Troubleshooting SNMP and WMI connections Re-enabling the Telnet protocol handler Passive Monitor payload limitation Receiving entries in the SNMP Trap Log Restarting the WhatsUp Gold services from the command line Uninstalling Ipswitch WhatsUp Gold Troubleshooting the WhatsUp Health Threshold