Incoming Fax Issue on ATA 187 - T38 reInvite not sent to SBC by Terminating Gateway
I have some issues with incoming fax. The voice phase is successful but the switchover to fax fails. When I call the fax number it rings, connects, gives one short beep then is silent throughout the call until I drop the call.
ITSP SBC--> (SIP Trunk) ---> Cisco gateway --> (H323) ---> CallManager --> (SIP) ---> ATA 187 with latest sw version
On the gateway, when I make a call to the fax I can see the IOS MTP is in use for that call for about 6 seconds upon connect - G729 is used; the call does not change to passthrough codec. The ccm logs show the ATA sending an Invite to CallManager containing T38 in the SDP, but I don't see the T38 Invite being sent from the gateway to the SBC. Looks like it isn't switching from G729 codec to T38.
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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