Hybrid Systems JSC
Users Manual
Page 6 of 6
GSM 102 Gate
Only free
numbers can
be called out
The residual
money on SIM
card is too less
Add money to the SIM card subscriber
Can’t hear
sound during
calls
The malfunction
on the
telephone
Change the connected telephone with a good
one
Poor voice
quality during
calls or there is
echo during
calls
The voice
volume is too
high or the
signal of
network is too
weak.
1. Adjust voice volume to be lower. 2. The
local signal is too weak. Move the terminal to
the place where signal is stronger. 3. Make
the antenna is longer from the telephone 4.
The voice quality of the connected telephone
isn’t good. Change the connected telephone
5. Trouble on the GSM network.
No ringing
sound
The malfunction
on the
telephone
1. Malfunction on the connected telephone 2.
Malfunction on terminal. Please contact the
provider of the terminal.
Incoming calls
can’t be
answered
The connected
telephone does
not match the
terminal or
forbidding
answering
incoming calls is
set
1. Change the connected telephone with a
suitable one. 2. Forbidding answer incoming
calls is set up, please contact the service
provider.
FUTURE CONTACTS
Hybrid Systems JSC
BULGARIA, 1303 Sofia
70 Hristo Botev Blvd, fl. 2
Phone: (+359 2) 931 2222; 489 3200
Fax: (+359 2) 931 2384
E-mail: office@hybsys.bg
WEB: http://www.hybsys.bg
