I am currently deploying Cisco VoIP to a number of sites. Some of these sites currently have B1/POTs lines, some have DID & CO trunks. Is there a difference between a CO trunk and a regular land line/B1? Can you terminate a CO trunk directly on a analog device like a Fax machine?
The question is probably elementary but I cant find anything specific on the differences between them.
Is there any difference in quality of the lines/trunk themselves?
I am having issues with Postage Machines at the sites. We can get them to work fine on PRI sites, however if the Postage Machine is trying to connect over a CO trunk the handshake fails. It seems to come down to the input gain/outout attenuation/impedance settings on the voice-port connected to the CO trunk. I can get it to work occasionally but its not consistent. Its basically two modems connecting to each other, same as a fax session.
We also have some sites that have B1 lines instead of CO/DID trunks. The B1 lines will be terminated on FXO ports on the router and be configured as a single trunk-group for all inbound/outbound calls.
I am curious if the B1 lines will have the same amount of static/noise on them as the CO Trunks. Is a B1/POTs line more clean than a CO Trunk, even if they are both terminated on FXO ports?
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 ...
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