Tone And Message

thats a network service provider setting....from settings...select CANCEL ALL DIVERTS.......if this does not work contact your network service provider

Have you tried contacting your service provider to enquire as to if they are blocking the 453 number and not your phone? Are you sure your service is working "local" i.e when you phone someone are you phoning via the local mobile service or is it routed via your mobile service from wherever you come from to honduras? You could also try doing a phone reset.

Resetting the voice message waiting indicator
When you receive a new voice mail message, the new message LED on the top of the handset flashes. In the event your message waiting light gets out of sync with your phone company's
voice messaging system, you can manually reset it back to the "No messages waiting" state.
1. Press and hold FiND on the base for five seconds.
Note: The handsets connected to the base will start to beep, however, keep pressing for five seconds.
2. A beep sounds and the message alert tone is reset.
Changing the dial mode
Your phone can communicate with the telephone network in two different ways: tone dialing or pulse dialing. These days, most base networks use a method called tone dialing, so your phone comes programmed for tone dialing. If your phone company uses pulse dialing, you will need to change your phone's dial mode. If you don't get a dial tone or can't connect to the telephone network, please follow the steps below to modify your phone's settings:
1. Press MENU/SELECT.
2. Select the Global Setup menu, and then the Dial Mode submenu.
3. Scroll to highlight Pulse.
4. Press MENU/SELECT. You will hear a confirmation tone.
If you ever need to change the dial mode back to tone dialing, follow the same procedure, but select Tone in step 3.

Finally for future ease of use, here is a link to the user manual were I copied the above information from:

http://www.uniden.com/content/ebiz/uniden/resources/ownersmanuals/DECT1580-3om.pdf

Which ones? System speed is programmed from station 10 or 11 and goes in the 6xx's, depending on your version of software. The start is FEATURE 00 FEAT 6xx and dial the number You can continue programming more numbers by pressing FEAT 6xx or Feat 00 to exit.

Personal speed dial numbers are programmed similarly, except they are in locations 80-99 on each phone and can be programmed from the phone if it's a system phone.

Auto Dial buttons use blank buttons on your set. Feature 00 pressing the button and dialing the outside number store those. Again, Feature another button will let you program another button, or Feature 00 ends programming.

Carl

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

Hi, You can use this instruction to activate and de-activate Call divert .Works on all phone


Turning Call Divert On

*
by Touch Tone phone

Step 1 Lift the receiver and listen for the dial tone.
Step 2 Press the Divert On button if using an Optus OneTouch phone, or dial *78 from any other touch tone phone.
Step 3 Listen for three beeps followed by a continuous tone.
Step 4 Dial the telephone number to which the calls are to be diverted.
Step 5 Listen for two short beeps, confirming the diversion.
Step 6 Replace the receiver


Turning Call Divert Off

*
By Touch Tone phone

Step1 Lift the receiver and listen for the dial tone
Step2 Press the Divert Off button if using an Optus OneTouch phone, or dial #78 from any other touch tone phone
Step3 Listen for two short beeps to confirm removal of the diversion
Step4 Replace the receiver.



Other Call Divert Options - Selective Calls
With selective call options, you can choose which numbers you wish to divert, accept or reject by adding these numbers to a list. You can list up to 30 numbers for each call option.

*
Turning On or Off Selective Call Options

Step1 Lift the receiver and listen for the dial tone
Step2 Press the access code for the service you require. You will hear a prompt telling you the status of the service and how many telephone numbers you have on your list. To turn the service on/off press 3.

Access codes Dial
*63 for Selective Call Divert Dial
*68 for Selective Call Accept Dial
*60 for Selective Call Reject
Step3 For Selective Call Divert you will then hear the 'divert to' number that is currently entered. If this number is correct press 1. If it is incorrect, press 0, then re-enter the phone number you wish to have your calls diverted to. When turning this feature off dial 3 again.
Step 4 The feature is now on/off.
Step 5 Replace the receiver.


Note: You can divert calls to a local, national or mobile. However, you cannot divert calls to emergency, 0055, 1900, 008, 1800, 0050, 13, 1300 or international numbers.

Hope it helped.

Thanks for using fixya...

The Call Forwarding feature is activated. This feature allows you to direct your incoming calls to another number. Go to Menu>Settings>Call> Forwarding>All voice calls. Select Cancel/Deactivate to disable it. You have also the option to direct incoming calls if you cannot answer it, if the phone is in use, and/or if the phone is switched off or out of coverage.

Check if you have any call diverts activated
If you have call divert option when you are busy you will get this msg

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.

this will happen if u have activated the call divert option ...
just go to call settings in that call divert options give "cancel all"
then this will cancel....

u must have activated the "call divert""if not reachable or switch off"... cancel it first...