How do I retrieve messages remotely from my Lucent Technologies as40 (same as AT&T 1715) digital answering machine?

The remote operation instructions are on the right half of the first page of the manual at
http://www.radioshack.com/graphics/uc/rsk/Support/ProductManuals/4303829_PM_EN.pdf

For some reason I can't respond on the other thread that you posted.
What lights are on the voice mail card? There should be 3 on the lower edge of the card.

I had a problem recently when I looked online to find the manual for this model and a similar model, and thankfully I was able to solve the mystery and locate it. Even though the answering machine says it is a Lucent AS40, the correct user manual for it is the manual for the AT&T 1715. Once I figured this out, it was super easy to locate the manual on AT&T’s website... and sure enough, these two products are identical!!!

The user manual for the AS40 can be found at http://telephones.att.com/docMgt/public/art/161/1715_manual.pdf

I figured this out when I ran across an old article discussing a joint venture between Lucent Technologies (AT&T) and Philips Electronics. Apparently the two companies decided to merge together and combine their resources to develop technologically advanced answering machines. After the products were developed, each company marketed them under their name with a different model number, but both were selling the same thing! The reason we couldn’t find the user manual for the Philips model is because Lucent (AT&T) has the manuals!

In case this might help someone, I own two of these answering machines and can vouch that the user manual for the Lucent AS40 is the same as the AT&T 1715 and the Philips AD2735 is the same as the AT&T 1725. Here are the models that were produced during the joint venture:

AT&T/ Lucent 1715 = Lucent/ AT&T AS40
AT&T/ Lucent 1725 = Philips AD2735
AT&T/ Lucent 1717 = ?
AT&T/ Lucent 1815 = ?
AT&T/ Lucent 1825 = ?
AT&T/ Lucent 7625 = ?
AT&T/ Lucent 7630 = ?

I phoned in from another phone and retrieved my messages. The problem was not with the answering machine but with the phone and calling card I had been using. Don't use a hotel switch board nor calling card, too many intermediate parties for the 2 digit code to work with.

Taken from the 1725's User Manual:

Deleting Messages
1 Connect with the answering
system.
2 To delete selected message — Press
and release 3 while the message is
playing.
To delete all messages in a
mailbox — After you have listened to
all messages and heard the two beeps,
press 3, and then the mailbox
number.

You can download a copy of the manual at the following URL:

http://telephones.att.com/telephones_ui/support/dsp_manual.cfm?manualID=164

Try just pressing down on the greeting button on the answering machine, you will hear the lady say "record greeting" and keep holdong down until you are finished recording the message. When you are done, remove your finger, done!

If you search for an AT&T Digital Answering machine model 1715, you will be sent to a free service with an abreviated manual.

I'm sorry there isn't. Answering machines like this have very little ROM memory. After a powersurge and outage like last night, it wiped the whole memory chip. You can try there support page. It's actually pretty good. http://telephones.att.com/telephones_ui/support/index.cfm