Question about Avaya Definity 8434DX Corded Phone

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Avaya 8434dx stuck in "cover"

Incoming calls go straight to v/m. # 3 or * 3 should return the phone to normal mode, but this is not working. How do I get it out of cover and restore to normal ringing?

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Posted on Jan 02, 2017

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SOURCE: Avaya partner 18D phones

No response. closing

Posted on May 09, 2009

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SOURCE: I have a Lucent (Avaya) Partner 18 phone system.

see if the DND or do not disturb is on. It should be a lit button programmed on the set, if its not programmed press feature 00, press a blank button and press feature 01

Posted on Sep 11, 2009

SOURCE: Avaya Lucent Telephone System fax not answering

What Avaya phone system do you have?

Posted on Oct 19, 2009

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SOURCE: Avaya 6416D+M, rings half ring, then goes straight to voice mail

you might status the phone to make sure that send all calls somehow is not on. :)

Posted on Nov 05, 2009

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SOURCE: The display screen on my Avaya 8434DX isn't

check that the power brick is plugged in to a wall socket with power. The brick is gray and sits in between your phone and the phone socket. It inserts power for the display. ensure that the green LED is lit on the power brick and cables are plugged in properly. If the power brick is faulty contact your maintainer to get a replacement

Posted on Dec 22, 2009

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According to the article, and other information I've been reading, there is more than one possible mode a GPRS/EDGE phone network can be configured to operate in, 001 and 002 being the most common. In mode 001 if an incoming call occurs during data use the data session will be terminated and the call will come through. In mode 002, the call will go straight to voicemail. Apparently the majority of 2G networks in the world use mode 002! confused.gif mad.gif

It's possible to use the iPhone's field test mode to see what Network Operating Mode is for the network - to do this, first disable 3G, then go into field test mode by dialing *3001#12345#* from the phone app keypad then pressing call, then go to GSM Cell Environment -> GPRS Information, and scroll down to "Network Operating Mode".

I've checked this for all 5 networks and in all cases (at least where I live) it was mode 002 - the mode which doesn't allow for incoming calls when 2G data is in use. rolleyes.gif

The ramifications of all this are that any time you use data on GPRS/EDGE you will miss incoming calls and unless you have a missed call service with your provider, you won't even know you missed them, as they will not show up on the phone. (And the missed call texts themselves will be delayed as well)

Not only can this be caused by actively using an app such as safari, (or leaving a data using app active with the screen locked) but background mail checks and push notifications will cause it as well. frown.gif So if your phone is lying there unattended and it happens to do it's 30 minute (or whatever) mail check just before someone tries to call you - missed call.

Having push notifications enabled is even worse, because it tries to keep an active data session as much as possible, and re-establishes this connection every time the data connection is interrupted.

One good example of this is if you have push notifications active, try making or receiving a call, hang up, and call the phone back in less than 30 seconds or so of the previous call - missed call.

The reason is that the GPRS/EDGE connection was interrupted by the first call, so when the call ended the phone immediately tries to re-establish the push data connection, and on a slow connection this takes up to a minute to do and then go idle before the phone can receive another incoming call.

I'm stunned that a problem of this magnitude (which is not really the phones fault at all, but is made far worse by turning on push notifications and background email checking) has been seemingly covered up and glossed over for so long - the O2 UK forum has a message thread with over 500 people complaining of frequent missed calls, with no official acknowledgement from O2 on what the cause is, with the only suggestion being to turn off push notifications. (Which will ease the problem but won't cure it)

What baffles me is why the networks don't just run in mode 001, which allows incoming calls to interrupt the data session - surely an incoming call is more important than finishing downloading an email ? Surely with more and more phones relying on data and trying to hold persistent push connections open, this is only going to become more and more of an issue ?

Perhaps someone like Planner could comment on why networks might not be using mode 001, I'm assuming it either has some drawbacks or compatibility problems with some phones, or is an added cost to support. Is there any likelyhood of this ever changing ?

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