29579be1 manual for see and hear phone

Only when your hearing aid has bluetooth, you could be able to connect it to a smart phone. But the manual that came with the hearing aid, should mention what systems are compatible with the hearing aid. Like iOS (Apple), Android or Windows (Microsoft)
Then the manual also will say what app you have to install and how to get it.
Pairing, goes with switching on bluetooth and most of the time you have to enter a code to allow the systems to pair. The code for your hearing aid should be in the manual.

Success

After reviewing the manual, it appears the answer machine does not have call screening ability. I have included a link where you can download the manual.

http://vt.vtp-media.com/ecp/documents/product_Product/75/UserManual/197/I6789_Manual.pdf

JUST U NEED TO CHANGE THE SPEAKER OF THE HANDSET, JUST GIVE IT FOR REPAIRING

This could be due to a phone setting.
You probably have the phone or the blue tooth in the "mute mode"
check you instruction manual or the phone settings to see if you have it voice muted for privacy.

network problem connect to manually

Is there a mute functionality on you phone? Try to change the settings if there is. Refer on the manual.

If there isn't, then there must be a problem with your phone's mouthpiece. Have a cellphone technician check it.

Speaker part of phone works ok, can hear in coming voice on
hand set but caller can not hear me .

Our phone decides to call screen people so the answering machine goes on after 2 rings. We can't find the manual.

Turn up the volume control.  Don't have the manual in front of me but go into phone settings and look for the volume settings( not the ringer).  Check in your manual, you'll find it.