chrisn

I inherited an Axxess 9.1 system and a problem with our 8622 VOIP phones.

On a fairly frequent occasion, the audio on the IP phones will take a dive. Static, cutting in and out, and generally unusable.

Inter-Tel has been little or no help. My ISP has been very tolerant of all the help I have asked for.

The IPRC card has an external IP address, and bandwidth is no trouble an any of the connections.

I have found some advice in other forums saying to adjust the settings on the system\IP-related Information\Call Configurations off of the defaults, from\to the following:

Audio Frames/IP Packet - 3\5
Average In Time Frame Percentage Threshold - 60\60
Average In Time Frame timer - 5\3
Echo Suppression Sensitivity Level (%) - 60\60
Minimum Playback Time - 80\100
Transmit DTMF Level - USA -9 -7
DTMF Encoding Setting - G.711 Mu-Law\RFC 2833
Speech Encoding Setting - G.711 Mu-LawG.729
Echo Suppression Blocker - Yes\NO
Echo Suppression - Yes\Yes

I'm looking for any help I can get here. We have also considered looking at sending the traffic over a VPN connection, in the hope that we will be able to give it priority, but the hardware has not arrived yet.

Any help would be greatly appreciated.

Thanks,

Chris