Awhile back i had switched about 12 polycom vvx300 phones over to a single switch and plugged the PCs into the vvx300s to limit the amount of ports used on the switch. However after doing so, whenever a user received a call the line would have a silence. no one would be able to hear each other (dead air). i ensured that ports 2222-2269 were open on the firewall. Is there a checklist or guide that i can access to show detailed steps and requirements to make that type of setup work?
Currently i switched everything back to the way it was and is now functioning. pc to switch and vvx300 to its own switch.
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It is always useful to include the currently used UC Software version as issues experienced may already be addressed in a newer release.
Please also include if you are using a SIP server or a LYNC server
If LYNC or Skype please provide Version details and if these are on premise of off premise
This also allows yourself and others to check against current software release notes.
The above is also stated in the "Read First: Welcome to the Polycom VoIP Forum"
Therefore the Polycom VoIP FAQ contains this post here:
Question: How can I find out my SIP UC Software Version or the BootROM Version of my Phone?
Resolution: Please check here
Jan 19, 2012 Question: How to troubleshoot Polycom VoIP related Issues?
Resolution: Please check => here <=
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It sounds like the switch you moved the phones onto is half duplex, and as a result the audio stream will be cut out when there is any sound on your end, and the phone is uploading it. Try leaving the phones on the working switch where they are, and moving the PCs to the PCs port on the phones.