we are using CUCM 7.0 and external paging system. The paging company said their system works with dry lines. So I have to connect speaker headset cable from one IP phone directly to paging system. This pair wire must be speaker feed. they are four wires, two for speaker and two for microphone. But I don't know which one is used for speaker.
I fully agree with Jonathan here (+5 points my friend) I have worked with Telephone system integrations to Paging setups for many years and have never had to take a phone apart to hook something up like they are asking you to do. Most likely you will use the TAMB as shown below and also in the Manual section from Jonathan's doc;
You will see that the TAMB answers the call via FXS on T&R and then bridges the audio across to the Paging Amp on dedicated (or "Dry") pairs. You will need this mid-point device. I have worked with others who have successfully used this product.
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The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...