Note: I wanted to post this in the forum under the original thread, but kept
getting an invalid posting password error. I don't see the posting password
field on newer threads. Maybe I can't reply because the thread is so old?
Please see the following thread for more info:
http://forum.sipfoundry.org/index.php?t=msg&goto=9518&S=5b913512ef3128221f7f9c325218569f&srch=odd+voicemail+issue#msg_9518

[quote]
Under the SIP tab I changed

Mark All AVT Packets to no

Under the line settings

DTMF Process INFO: NO
DTMF Process AVT: NO
DTMF Tx Method:  Auto

I can now get in each time without issue.
[/quote]

I had the same issue; I was not able to retrieve my messages from home, as
it always said my password was invalid (even though it was correct). I have
resolved this issue with the help of these posts (thanks geoff!). I thought
I'd share my results and offer a suggestion.

Note: I could only reproduce this issue when the device was a remote worker.
If it was local, I could not reproduce the issue.

I first changed the following settings based on instructions in the
sipx-wiki:

Preferred Codec: G711u
Use Pref Codec Only: yes
DTMF Process INFO: no
DTMF Process AVT: no
DTMF Tx Method: Auto
DTMF Tx Mode: Strict

I had previously changed RTP Packet Size to 0.020.

This definitely reduced the frequency of the problem, but the issue still
happened about 40% of the time. I then made the following change:
Mark All AVT Packets: no

This appears to have resolved the issue. I tried about 20 times and I could
not reproduce the issue.

There are existing PAP2 notes on the sipx-wiki in the following location:
http://sipx-wiki.calivia.com/index.php/HowTo_configure_Linksys/Sipura_Gateways_(FXS)

This page already recommends to make the following changes to the PAP2
device:
Under the sip tab:
 RTP Packet Size: 0.020
Under the line settings:
 DTMF Process INFO: no
 DTMF Process AVT: no
 DTMF Tx Method: Auto
 DTMF Tx Mode: Strict

I think we should change this to the following:
Under the sip tab:
 Mark All AVT Packets: no
 RTP Packet Size: 0.020
Under the line settings:
 DTMF Process INFO: no
 DTMF Process AVT: no
 DTMF Tx Method: Auto
 DTMF Tx Mode: Strict

Also, I think that the instructions should also be updated to specify that
the Voice Mail Server should be set to [email protected]. This will allow
voice mail notification to work.

Regards,
Tim
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