Now the call back is work between OS7200 & OS7070 via Qsig ,if the call is
from Digital phone to Digital phone .


But when i try from single phone to single phone the Call back does not
work on two sides .

Also when I try form digital phone to single phone or vice versa, I can
make call back from Digital phone using CBK button & its work with busy
single phone,on other side when i try to make a call back from single
phone to busy digital phone does not work in both systems .

I need your help

Thanks again

Best regards