I've got a problem trying to do very basic FXO - FXS configuration. When i try to call from main site to remote site everything is working fine.
But the problem is when i try to call , from main site, a phone localized on remote site there is no ring on the FXS phone. it doesn't ring out on REMOTE phone ,though if I pick , I can hear or make conversation clearly.
Please find attached the config of the two routers (MAIN and REMOTE) and a drawing of the architecture.
Of course, i've tried differents analog phones to be sure that the problem is not coming from hardware pb on the phone. I have also tried all the signal frequency parameters (25. 50, ...) on voice-port where phone is connected, but no change.
I've found where the problem was coming from ! Actually it was an hardware config problem. The problem was because jumpers on the FXO card didn't set properly. The jumpers were set for ground-start instead of loop-start. See below:
"On Certain FXO VICs include two jumper headers, W3 and W4, to set loop-start or ground-start mode. One jumper configures each FXO port. The default setting, which should be satisfactory in most installations, is loop start. In this setting, jumpers are placed over positions 2 and 3 of headers W3 and W4. Most modern central office equipment, such as DMS-100 and 5ESS switches, provides calling party control (CPC) and Ring on Seize on loop-start lines. CPC allows quicker disconnection, and Ring on Seize minimizes glare (collision of inbound and outbound calls on the same interface). If your central office does not provide these features on loop start, you may want to configure the FXO card for ground-start operation instead by moving the jumpers to positions 1 and 2. For proper operation, both jumpers must be configured identically. In most cases, jumper setting should have little or no effect on operation. "
You have reached the Cisco Logistics Support Center.. To Check Status of
your RMA, visit Product Returns & Replacements (RMA). Need help? Contact
us by Phone or Email. North Americas Phone: 1800 553 2447 Option 4
Email: email@example.com Europe Phone: +3...
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 ...