In a telephony system, we must have a voice gateway to connect to PSTN. I think of a situation and want to know your ideas:
If we use H.323 as the signaling protocol and configure POTS dial-peers to send calls to PSTN, anyone who know the address of the H.323 gateway can use this gateway to make calls to PSTN (just send the calls to the voice gateway and then the VG sends the calls to PSTN)
How can we prevent this?
P/S: if we use SIP or MGCP, will the situation be the same?
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: firstname.lastname@example.org 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 ...