Phone with encryption does not work with unsecure CFB
I've got 7941's here with encryption turned on. It seems working fine, on calls between these phones, the Lock-symbol is shown, on calls with the PSTN or not-encrypting phones it's not.
When I start an ad-hoc conference, all encrypting participants have no audio. The non-encrypting participants can hear each other. The call statictics on a 7941 show 0 recvr packets, but wireshark says that udp-packets flow in both directions.
The conference bridge is unsecure.
From my understanding, the encrypting phones should fall back to "unsecure mode" when an unsecure cfb is available only. Am I wrong here?
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