Caller try use crypto over UDP transport.
  1.    a=crypto:1 AES_CM_128_HMAC_SHA1_32 inline:X0jxiZ/k7DPggObqIRzhtGG43JCiVNd94vDSguFd|2^31
  2.    a=fingerprint:sha-256 A9:4C:E4:69:65:05:D5:43:C7:E5:0A:99:E5:5B:2E:01:80:EE:81:49:C0:C3:47:3C:10:66:B5:FF:8B:5D:BA:5F

Your FreeSwitch send SDP with duplicated audio media
  1. m=audio 21718 RTP/AVP 8 101 13
  2. a=rtpmap:8 PCMA/8000
  3. a=rtpmap:101 telephone-event/8000
  4. a=fmtp:101 0-16
  5. a=rtpmap:13 CN/8000
  6. a=ptime:30
  7. a=sendrecv
  8. m=audio 21718 RTP/AVP 8 101 13
  9. a=rtpmap:8 PCMA/8000
  10. a=rtpmap:101 telephone-event/8000
  11. a=fmtp:101 0-16
  12. a=rtpmap:13 CN/8000
  13. a=ptime:20
  14. a=sendrecv

To fix need:
1) disable encryption on caller side;
2) upgrade FreeSwitch to 1.6.20 or 1.8.2 version

Sergey


пн, 12 нояб. 2018 г. в 20:02, Daniel <freeswitch-users@funke.net>:

Hi Sergey,

thank you for this advise. In the telephone I found no option to disable ICE but in the gateway. With ICE disabled in the gateway the call still fails. Do you have other ideas what to change?

https://pastebin.freeswitch.org/view/fddd86d4

Best regards

Daniel


On 11/11/18 6:34 PM, Sergey Safarov wrote:
Try disable ICE protocol on device.

вс, 11 нояб. 2018 г. в 17:35, Daniel <freeswitch-users@funke.net>:
Dear all,

I'm working with FS since a week. Hope, it's ok to use it in FusionPBX
;-) I found out many cool things so far but
with one thing I'm stuck.

I'm not able to initiate a connection from innovaphone devices (1
deskphone IP240 and 1 PBX/GW IP800). Calling to
these innovaphones is ok. From other devices to FS and softphones I can
connect too.

In my first try from the innovaphones I got the message

2018-11-10 23:41:58.763840 [WARNING] switch_core_media.c:4181 NO
candidate ACL defined, Defaulting to wan.auto
2018-11-10 23:41:58.763840 [NOTICE] sofia.c:7774 Hangup
sofia/internal/11@pbx.[anonym].net [CS_NEW]
[INCOMPATIBLE_DESTINATION]

I found the solution to put apply-candidate-acl=localnet.auto to the
internal SIP profile. I don't understand why
this was necessary only for the innovaphones and not for other devices
but after changing this I can establish a
connection but cannot hear anything on both ends. After a few seconds
the connection is disconnected automatically.

Here's the log. I hope, someone can help

https://pastebin.freeswitch.org/view/db088714

Best regards
Daniel


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_________________________________________________________________________
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https://freeswitch.com

Official FreeSWITCH Sites
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https://freeswitch.org/confluence
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_________________________________________________________________________
Professional FreeSWITCH Services
sales@freeswitch.com
https://freeswitch.com

Official FreeSWITCH Sites
https://freeswitch.com/oss
https://freeswitch.org/confluence
https://cluecon.com

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