04-22-2008 06:55 AM - edited 03-15-2019 10:13 AM
CallManager Active Version: 5.1.3.2000-3
Inactive Version: 5.0.4.4000-1
Administration Version: 2.0.0.1-1
Just received new 7937 with no worthwile instructions in the box. Only a End User License, compliance, warranty, and a single page document written in what appears to be chinese.
Went on line and located the readme file for Firmware version 1.2.1. According to the documents cmterm-7937-sccp.1-2-1.cop.sgn will work with my version of Call Manager.
I followed all the instructions for downloading and installing the software on the call manager. According to the install process the file was successfully installed. I stopped and restarted the TFTP services and the phone does not show up in the list of available devices to add.
How do I get this paperweight to actually work?
Solved! Go to Solution.
04-22-2008 10:18 AM
Hi Lee,
You won't love this given what you have already had to go through, but I thought you should see it anyways. Unfortunatly the 3550 - 24 PWR only supports Cisco prestandard PoE and the 7937G requires IEEE 802.3af PoE . 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
Catalyst 3550-24PWR
24 10/100 Cisco prestandard PoE ports and 2 GBIC-based Gigabit Ethernet slots
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
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
04-22-2008 07:43 AM
you have to admit it's a nice looking paperweight though =)
Try loading the latest DevPack to your box:
Cisco Unified Communications Manager 5.1
http://www.cisco.com/cgi-bin/tablebuild.pl/callmgr-51
HTH
javalenc
if this helps, please rate
04-22-2008 08:40 AM
Not sure what loading this device pack will accomplish as I already installed Firmware version SCCP 1.2(1) and the version in the device pack is 1.0(1). Even stopping and restrating the TFTP service, the phone is not listed as an available device. I'll let you know the outcome.
Adding a Cisco Phone to a Cisco "phone system" shouldn't be this hard.
04-22-2008 10:01 AM
Okay i downloaded and installed the device pack and reinstalled the 1.2(1) firmware. The 7937 shows up in the available devices but I still can't get it to work.
Plugging the phone into a 3550 POE switch, the 7937 LCD panel lights up along with the three green LEDs, stays on for about 5 seconds turns off for a second, turns back on for a second and then turns off for about 8 seconds and then repeats. None of the keys appear to do anything.
Pressing **#** does nothing. I think this phone while it looks cool is defective...
CISCO please note. How about including some instructions with the phone???
04-22-2008 10:18 AM
Hi Lee,
You won't love this given what you have already had to go through, but I thought you should see it anyways. Unfortunatly the 3550 - 24 PWR only supports Cisco prestandard PoE and the 7937G requires IEEE 802.3af PoE . 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
Catalyst 3550-24PWR
24 10/100 Cisco prestandard PoE ports and 2 GBIC-based Gigabit Ethernet slots
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
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
04-22-2008 10:40 AM
Thanks Rob. We located a 2960 PoE switch and saw that the Cisco logo comes up on the phone. So instead of having an elegant one-cable solution I'm back to the mess of a separate power cube to light the phone. What a racket. Neat way to get folks to buy additional hardware as the older phones are "obsoleted". Lee
04-22-2008 02:02 PM
Sorry for the Typo. That should be a 3560 PoE switch and not a 2960.... Oh well I ordered the splitter device and will have to wait before I can check this unit out...
04-22-2008 04:01 PM
Hi Lee,
Just curious what exact 3560 Model? From what I can see the 3560 PoE should support the 7937G. Have a look;
Cisco Power Calculator
Cisco Catalyst 3560 Series Switches Data Sheet
Hope this helps!
Rob
04-22-2008 05:17 PM
The majority of our closet switches are 3550s thus the Conference phone won't work. We have a very few 3560s and this allowed me to verify the phone works.
Lee
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