Bluetooth use to disconnect and not able to connect again

Hi,

I am using Ubuntu 10.10 with bluetooth/bluez version 4.69 with Asterisk 1.8.3.2. Phone Samsung Glaxay SL GT-I9003.

Every thing works fine for few calls After that my mobile bluetooth use to disconnect and never connect till my system restart.
I found that some time asterisk feels that call is connected where actual call was disconnected from mobile. Please help.

The configuration of chan_mobile.conf is given below.
[general]
interval=30
[adapter]
id=blue
address=00:1A:6B:73:E1:68
forcemaster=yes
[I9003]
address=38:16:D1:81:58:8B
port=1
context=incoming-mobile
adapter=blue
group=1

Some Commond output are
root@anand-laptop:/etc/asterisk# hcitool dev
Devices: hci0 00:1A:6B:73:E1:68

/etc/bluetooth/hcid.conf
options {
autoinit yes;
security auto
pairing multi;
passkey “0000”;
}
device {
name "Asterisk PBX"
class 0x000100;
iscan enable; pscan enable;
lm accept;
lp rswitch,hold,sniff,park;
}

anand-laptop*CLI> mobile show devices
ID Address Group Adapter Connected State SMS
I9003 38:16:D1:81:58:8B 1 blue No None No

One thing I want to let you know that my phone not support discoverable mode more then 120 sec but when my computer start first time it use to connect my phone in hidden mode only so I don’t think this may create a problem.

Should I file it as a bug???