On a Grandstream HT-502 ATA voicemail does not work for me as well. The IVR returns "Login incorrect".
I thought it has something to do with DTMF, because from Eyebeam softphone I'm able to authenticate and hear the actual messages but not from my ATA.
However I dialed from my ATA *645904 a mosuelike.org echo test and when the IVR requested option 1 for an echo testing the system accepted my choice, again this is from my ATA. Could it be possible this 'issue' to be originating from your servers?
|