One touch access to voicemail using BT100/102

Thanks for that. Only had my phone for a year....never even spotted that.

If you don't want to mess with all the GUI stuff in FreePBX, you can do it directly in the extensions_custom.conf file like this, using an unused extension number such as 2000 as an example:
Under from-internal-custom enter the following 2 lines:

exten => 2000,1,VoiceMailMain(s${CALLERIDNUM})
exten => 2000,n,Hangup

If you prefer to have it in the GUI (makes it easier to remember what you did 6 months from now), do this:
In extensions_custom.conf, add the following:

[custom-vm]
exten => vmnopass,1,VoiceMailMain(s${CALLERIDNUM})
exten => vmnopass,n,Hangup

Then in FreePBX go to misc applications, add a new misc application, name it whatever you want, set the feature code to the extension you want to set for voicemail retrieval, and set the destination to Custom App:
In the Custom App box type: custom-vm,vmnopass,1

Now when anyone dials the extension number you set by either method, it will bring them straight to their voicemail, no password required.
Just set the voicemail setting on the web interface to the BT100 to that extension and you have 1 touch access.

Cheers,
Mike

Andrew, the Trixbox Without tears guides are very good, Kerry's tutorials over at www.asterisktutorials.com are also very good, as is http://www.sureteq.com/asterisk/trixbox.htm
www.nerdvittles.com has all kinds of cool stuff for trixbox
I would also recommend getting a copy of Asterisk: the future of telephony. It's an O'Reilly book and is also released as open source so you can download a pdf copy. It's not trixbox specific but is a good reference for some of those arcane commands.
I usually wait til my wife isn't home, then backup the conf files and experiment :)

Cheers,
Mike

My setup is at home, so I'm simply looking for conventional answering machine functionality. I deliberately wanted to bypass the entry of a password, and mp3geek's solution works just fine. Probably not one to use in an open office though!

I have had the

[custom-vm]
exten => vmnopass,1,VoiceMailMain(s${CALLERIDNUM})
exten => vmnopass,n,Hangup

Working fine in a number of installs but it appers that this does not work in 2.4.2. Has anyone found a solution to this?