SMS Chat 

• USB Cable connection to mobile phone: Try to look in Windows menu "Start=>Control Panel=>Phone And Modems Options" for your mobile Modem outgoing port number.
• Bluetooth wireless Connection to Mobile phone: Try to look under Windows menu "Start=>Control Panel=>Bluetooth  Devices" if you can find your outgoing Communication port.
  Remember that you must answer an “Allow Connection?” question on your phone the first time it is connecting.
  

When you add a Bluetooth device to your computer, address information is exchanged. Sometimes, access keys are also exchanged. This process is known as pairing or bonding the two devices. When you add a device, one of the devices must be discoverable. Some devices let you turn discovery on and off, and others are always discoverable. For example, some mouse devices are always discoverable.

When you use Bluetooth to connect two computers, the computer that is added as a device must have discovery turned on. You can turn on discovery by using the Options tab in Bluetooth Devices.

Steps to take on the computer

To add a device, follow these steps on your computer: When you enter the passkey, your computer tries to connect to the device to verify the passkey. When you connect to another computer, you receive a message that the computers are trying to connect.

Steps to take on the device

When you have completed the steps on your computer, enter the passkey on the Bluetooth device. This device displays a message that indicates that you are requesting a connection. Follow these steps on the device that you are adding as a Bluetooth device:

1.	Click Start, click Run, type bthprops.cpl, and then click OK.
2.	In Bluetooth Settings, click Add.
3.	In the Add Bluetooth Device Wizard, click to select the My device is set up and ready to be found check box, and then click Next. Note You cannot click Next until you click to select the My device is set up and ready to be found box. A device that has discovery turned off cannot be detected during a search. When you click Next, your computer searches for any discoverable devices that are in range. When the search is complete, the devices appear in the wizard.
4.	Select a device to add, and then click Next. After you select the device to add, you can enter a passkey for the device. A passkey is a code that is used to control access to a device. Using a passkey may help improve the security of your connection. However, the device that you add may not require a passkey.

1.	Click in the message that indicates that you are requesting a connection. The Add Bluetooth Device Wizard starts and provides a field for entering the passkey.
2.	Enter the passkey. You may also choose to have a passkey generated for you.

When the passkey is verified, the connection is complete. The device is now visible on your computer.

After a device is added

After a device is added, it appears in Bluetooth Devices. You can view the device properties to examine the services provided, to change the name of the device, or to gather other information. You can also establish connections.

• SMS messages is sent via the modem in the Phone . If an error occurs the modem commands is written into the logfile. If any modem command is answered with OK you have a connection to the modem. Sometimes you have both an outgoing and ingoing Communication Port number, often the next Com Port number, try using the outgoing port.
• smschat uses the SMSC (SMS Central number) that is specified in your phone . This is the same as when sending normal SMS messages from your phone.
• If you send SMS via Bluetooth remember to answer "Yes" when your phone tries to open the connection and asks if you allow the connection.
• The application is sending SMS in standard PDU (Protocol Description Unit) format supported by most mobile phones. To low level test your phone capabilities we reccomend using the software PduSpy. Testing sending SMS with PduSpy

1. Can you manually send SMS from your phone so it is setup with correct SMS Central number?
2. Have you tried to send a SMS via the “Test to send a SMS” button under SMS Settings. Did it work?
3. Check if changing SMS sending carrier to “GSM” under your mobile phone SMS settings will solve it.
4. What connection are you using to your phone, Cable or Bluetooth ?
   If you are using Bluetooth remember that you must answer an “Allow Connection?” question on your phone the first time it is connecting.
5. If it was several days since you installed smschat. Try to uninstall the program and download/install the latest version from the web.
6. Running the general SMS Test tool PduSpy could be an option for you to get more info about what is wrong.