Preferred Codec: G711u
DTMF Tx Method: InBand

This is exactly the same problem I have
 

Hi,

I posted a similar problem concerning my Siemens C450IP in another thread, and the symptoms seem to match exactly what has been described here.

Once again, my DTMF settings seem to work with any voice prompt system, EXCEPT Voxalot voicemail prompts.

So far, I haven't been able to solve this, and continue accessing my voicemail through a Sipbroker PSTN access number.

Hi,

We don't have this device to test, however is it possible for you to post or email the settings to us to look at?

Thanks

how do I post the file or Email to you?

Email it to support [at] voxalot [dot] com.

Siemens C450 IP
 

I also have the same problem with voicemail & the siemens C450 IP.

Is there any solution for this in the mean time?

FYI I have the same problem where the VM prompt for the password; however I always receive "Login incorrect..." message.

I use the same work-around as bpere by dialing sipbroker PSTN then dialling *061*500 to reach the VM

We are collecting results to determine root cause. Please post results here:

http://forum.voxalot.com/voxalot-sup...cess-poll.html

I've found a solution, at least for the siemens gigaset C-450 IP:
Voicemail works when disabling all DTMF options except for RFC 2833
(using latest firmware)

my problem was solved. my system is linksys RT31P2
codec:G711u
DTMF Tx Method:auto

Dail 500
password? ok!