I have alcatel EX29366-A. When we hang the phone after a call the loudspeaker gets activated. So my phone is always in busy tone for callers. what to do?

What is happening when a call comes in are they getting a busy signal? If so your line is shorted out.. unplug all phones and see if caller hears a ring.. Then 1 at a time plug phones in. Check for a dial tone and press a digit, hang up and check and see if dial tone returns, repeat this on all phones, until you get to the phone that does not give you dial tone back after dialing a digit. That will be your bad phone... If the line was ring busy after all phones unplugged, call repair service..

The busy tone from your cellphone is sent when you are busy with one call & there is another incoming call. The following solution is only not to avoid certain callers or to avoid all callers. It may or may not serve your purpose. For this facility to work you have to make group/s of the certain callers & select them in manage calls.
If you want to disable busy tone sent, you can do it by selecting menu - settings - calls - manage calls - accept calls - only from list or none. In this case the person at the other end will receive "not reachable" message.Selecting only from list allows you to receive the calls from the selected groups/callers from your list. Selecting none will not allow anyone to call you. But in both the cases only you will know that who has called you & not the caller that you received missed calls.

sonsunny

To set Unconditional Call Forward ON Dial "*72" for a dial tone. Dial the forwarding number followed by "#". Wait for dial tone. LCD will display "Call FWD Activated"
To Cancel Unconditional Call Forward: dial "*73" and get the dial tone, then hang up. LCD will display "Call FWD Activated

but, since you have tried those two, it could be that there might still be a different type of call forward option that is still ON, on your phone like Busy Call Forward and Delayed Call Forward 1. To Cancel Busy Call Forward: dial "*91". Wait for dial tone. Hang up.
2.To Cancel Delayed Call Forward: Dial "*93" for a dial tone, then hang up.

Let me provide you a link to the website which I used as a reference for your future reference.
http://www.grandstream.com/user_manuals/GXP_User_Manual.pdf

Pitched the phone

Headset says ringer off, cannot hear dial tone

Hi,

To actually answer a call using loudspeaker, press the top-left button (options) and then the middle select button (with the option "Loudspeaker" highlighted). You can do this even when Keyguard is activated. (I just checked.) It means pressing two keys but at least it actually answers using the loudspeaker.

To make a call, the only way I can see is to dial first and then press the Loudspeaker button while the phone at the other end is ringing.

Activating Call Forwarding

You can activate Call Forwarding whenever you want your calls to be sent to another phone, including a mobile phone. Once activated, all your calls will be sent to the forwarding number you request. Each time a call is forwarded, you will hear one short reminder tone on your home phone, but you will not be able to answer the call from your home number.

1. Lift your telephone's receiver and listen for a dial tone.


2. Press *7 2.
In some areas you must use 72#
Dial 1172 on rotary or pulse-dialing phones.


3. At the tone, dial the telephone number where you want your calls transferred.
You will hear the number you entered ring. When the number is answered, Call Forwarding is activated.


4. If the call is not answered or the line is busy, hang up and call the number again within two minutes.
You will hear two short tones telling you that Call Forwarding is activated.


5. Hang up the receiver.

Deactivating Call Forwarding

Turn Call Forwarding off when you want to receive calls on your home phone.

1. Lift your telephone's receiver and listen for a dial tone.


2. Press * 73.
In some areas you must use 73#
Dial 1173 on rotary or pulse-dialing phones.


3. Listen for two short tones.
Call Forwarding is now off and you will receive your calls at your home number.

• If you answer the call, the number (or number and name) stays on the display until either you or the caller hangs up.
• If you do not answer the call, most display units keep a record of the calls received, including the phone number (or number and name), date, and time.
• If the letter P, priv, private, or a similar term appears, the caller may have blocked the display of his or her number.
• If the letter O, ????, out of area, or a similar message appears, the caller either is in an area that does not support Caller ID or has placed the call using operator assistance.
• Caller ID comes with Anonymous Call Rejection, which, when active, allows you to reject calls from callers who block their number. Your phone does not ring, and the caller hears a message saying blocked calls will not go through.
• To turn on Anonymous Call Rejection, press
  *77 on a touch-tone phone (or dial 1177 on a rotary phone)

• To turn off this service, press
  *87 on a touch-tone phone (or dial 1187 on a rotary phone)

or go through
http://www.decommunications.com/support/topics/repairs/phone/no-id-name.php

i have problem with my phone (TX TCA115UA B)

i can not turn on the tone regime (now is on pulse regime when i dile the number)

You may have activated a "Caller tune" or "Ring back tone" service. Check with your service provider to deactivate the tune.