We have a 2901 Router running CME with two 4-port FXO cards installed. We register SIP clients to the router and place/receive calls via the FXO ports.
We are trying to get the FXO port on the 2901 router to perform a flashhook operation when it receives an RTP-NTE event via the voip interface. The call is originally setup as a SIP call from a SIP client to the Cisco router.
I have setup the SIP Interface to negotiate the RTP-NTE events which seems to be working properly (I can dial DTMF digits via RTP Events on the SIP side and the FXO port generates the inband DTMF digits to the analog FXO port).
The SIP INVITE to the 2901 router negotiates (via SDP) the RTP Events as: rtpmap:101 telephone-event/8000 fmtp:101 0-16
to which the router responds with a 200 OK with the same negotiation (0-16).
If I send the RTP-Event 16 (which should be flashhook?), I can see that the router receives the event (by turning on "debug voip rtp session named-event"), but the FXO port does not generate a flashhook event. I have setup the "timing hookflash-out" setting under the voice-port for the desired FXO port, but it didn't seem to help. I've also enabled "fxo hook-flash" under telephony service, but from what I've read, I don't think this field actually applies to my scenario.
So, I have a few questions: 1) Is it possible to get the FXO port to generate a flash when it receives an DTMF Event (rtp-nte)? 2) If not, is there another method the SIP client could/should use to get the FXO port to generate a flash? We need to dial DTMF digits via the rtp-nte method (for IVR access, etc), so if the answer to this question is yes, can the two methods co-exist?
I only need to use rtp-nte for the dtmf dialing. I could certainly use h.245 for the flashhook if both methods could co-exist. I had read that Cisco used h.245 for relaying the flashhook between fxs and fxo cards, but could not find an example of what the message would look like.
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...