By default, the /etc/ppp/peers/wireless initiates a dial-in connection by reading the chat script configured in the /etc/chatscripts/wireless file.
Default /etc/chatscripts/wireless File
• An AT+CGDCONT=1,"IP","claro.com.br" to contact a local GPRS broadband service (GSM wireless network) in Brazil.To Specify the Telephone Carrier in the /etc/chatscripts/wireless File
1. Open the /etc/chatscripts/wireless file for editing.
3. Modify the commands to initiate the contact with your GSM/CDMA wireless service provider and to dial the correct number.