hello, just to confirm that I understand this correctly:
My understanding is that after a SIP session is established, when SDP is used to negotiate media capabilities etc., the internal LAN address of the user agent is written into the SIP packet (within the relevant SDP fields) for the purpose of establishing an RTP connection. This causes a problem with the ADSL router NAT system as this IP address is embedded within the SDP packet. It is therefore not detected by NAT and is not converted to a workable external NAT address/port combination.
Therefore most modern ADSL routers have the capability to 'deep' inspect SIP packets and rewrite the SDP IP address/port values in order to overcome this NAT traversal issue.
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 ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...