Polycom VSX 7000a Video & Audio Quality through ADSL Router

[Habibalby]

Hi,

I have connected the Polycom VSX 7000A directlly into the ADSL Cisco Router and forwarded the ports to the IP Address of the Polycom Device as follows;

• 3230-3235 TCP
  3230-3253 UDP
  1720-1720 TCP
  80-80 TCP
  5060-5060 TCP
  5060-5060 UDP
  1719-1719 UDP
  1731-1731 TCP
  1503-1503 TCP

I can establish a call and I can receive a call, but the clarity of the picture is not that much good as well as the audio. I even made sure that the only Polycom Device is the one which is connected and using the Internet, but still same quality of Audio/Vidoe. I can see huge packets lost in the call session. Attached the call session.

I have configured QoS in the Cisco ADSL Router based on the Polycom MAC Address for 1920 Kbps and to have High Priority, still no joy.

Is there any settings / configuration to have a stable/clear Audio/Vidoe Conference in the Polycom Device or special settins in the ADSL Router I should take care of?

Thanks,

[petet]

You may like to test to another end point.  I know little of the interop with Codian.

1920k sounds a little agressive, try less.  Aspecially with an ADSL Line where upload may be significantly poorer than download.

All the ports you listed are ok but anything after TCP1720 on your list is probably unnecessary.  TCP1720, TCP range UDP range will be enough.

Try 89.105.107.135 Our Hosted BBC Freeview box on a VSX7000s V9.0.6.2.(Unattended 24/7)

Pete

[Habibalby]

thanKs for your repky. What's the speed settings I should put? There are different places to change the speed in the polycom, shall I ignore them and just dail wil lower speed?
What about vidoe / audio settings do I need to change anything?

[petet]

In Admin>General>Home Screen Settings you can tick a box for Call Quality.  This will enable a drop down under the dialing entry field to select what type & speed of call you wish to make.  Also in Admin>Network>Call Preferences, you can set prefered minmums & maximums for ISDN & IP preferred call speeds.  The last page of that sequence allows you to turn off (make invisible) certain call speeds.

Pete