at first inicialization of bt adapter:


modprobe hci_usb;modprobe l2cap 
hciconfig hci0 up 


looking for a phone:
hcitool -i hci0 inq


pinging the phone:
l2ping  00:02:EE:00:AB:B3


hcid.conf - for daemon, which authorize and pair devices:
# 
# HCI daemon configuration file. 
# 
# $Id: hcid.conf,v 1.1.1.1 2002/03/08 21:12:35 maxk Exp $ 
# 
 
# HCId options 
options { 
        # Automaticaly initialize new devices 
        autoinit yes; 
 
        # Security Manager mode 
        #   none - Security manager disabled 
        #   auto - Use local PIN for incomming connections 
        #   user - Always ask user for a PIN 
        # 
        security auto; 
 
        # PIN helper 
        pin_helper /bin/bluepin; 
} 
 
# Default settings for HCI devices 
device { 
        # Local device name 
        #   %d - device id 
        #   %h - host name 
        #name "BlueZ (%d)"; 
        name "Linux"; 
 
        # Local device class 
        class 0x100; 
 
        # Default packet type 
        pkt_type DH1,DM1,HV1; 
 
        # Inquiry and Page scan 
        iscan enable; pscan enable; 
 
        # Default link mode 
        #   none   - no specific policy 
        #   accept - always accept incomming connections 
        #   master - become master on incomming connections, 
        #            deny role switch on outgoint connections 
        # 
        #lm accept,master; 
        # 
        lm master; 
 
        # Default link policy 
        #   none    - no specific policy 
        #   rswitch - allow role switch 
        #   hold    - allow hold mode 
        #   sniff   - allow sniff mode 
        #   park    - allow park mode 
        # 
        #lp hold,sniff; 
        # 
        lp hold,sniff,park; 
 
        # Authentication and Encryption 
        auth enable; 
        encrypt enable; 
}


conf file for rfcommd - mobile phone is master


options { 
        psm 3; 
        ppp             /usr/sbin/pppd; 
        ifconfig        /sbin/ifconfig; 
        route           /sbin/route; 
        firewall        /sbin/iptables; 
} 
 
na { 
        channel 1; 
        up { 
                ppp "%d call gprsbt"; 
        } 
} 


starting the communication:
rfcommd -n -f /usr/local/etc/rfcommd.conf na 00:02:EE:00:AB:B3


Let all of your chatscripts and peers conf files as are, u only need to delete
/dev/tty, because this feature makes rfcommd. Let 115200 communication speed 
in your peer file too.

and thats all 

Michal