Cisco IP conference Station 7937 not working with our system! HELP!

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Oct 2nd, 2008
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Hi all,


We use Cisco IP 7960 Series phones in our building. I have been given the task of setting up 12 Cisco IP Conference Stations Model 7937 and the demo model I was sent is not working. It won't even power up.


Any ideas what wrong? Is it not compatible with our Call Manager?


Thanks in advance!


C.






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gogasca Thu, 10/02/2008 - 12:10
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Which version of CUCM?

Which switchport configuration

Which switch model?

CCO search will give u 7937 compatibility

Rob Huffman Fri, 10/03/2008 - 06:09
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Hi Clark,


You won't love this, but I thought you should see it anyways. Unfortunatly the 7937G requires IEEE 802.3af PoE and I'm guessing that you may be using something like the 3550 - 24 PWR which only supports Cisco prestandard PoE and . Here are a few reference docs with this note;



Cisco PoE Product Snapshot


http://www.cisco.com/en/US/netsol/ns340/ns394/ns147/ns412/netbr09186a00801f4329.html



Power Requirements


The Cisco Unified IP Conference Station 7937G is interoperable IEEE 802.3af PoE (Class 3 device); 48 VDC is required; it can be supplied locally at the desktop using an optional AC-to-DC power supply (part number CP-PWR-CUBE-3=). Use of the power supply also requires the Cisco Unified IP Conference Station 7937G Power Splitter and one of the corresponding AC country cords


http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/phones/ps379/ps8759/product_data_sheet0900aecd806e021a.html



Power over Ethernet (PoE) Power Requirements FAQ - This shows other Class 3 IP Phones that won't work on a 3550 (the 7937 is too new for this doc, but you see where this is going)


http://www.cisco.com/en/US/products/hw/phones/ps379/products_qanda_item09186a00808996f3.shtml



Hope this helps! I know its a bummer :(


Rob

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