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I'm running firmware 8.7.5.35 and have trouble with the phone not ringing when incoming calls arrive (the missed-call indicator will glow afterward, also the message indicator if the caller left one). Calls will also drop mysteriously.

I'm using Callcentric as my VoIP provider. The phone is behind an Ubiquiti Edgerouter Lite that's providing NAT.

I've enabled compact headers and done:

ip_frag_enable!:on

short_form!: on

Log file snippet:

Jul 7 13:02:23 [NOTICE] PHN: TPL: Socket 574 idle/connect timeout

Jul 7 13:02:27 [NOTICE] PHN: TPL: Socket 585 idle/connect timeout

Jul 7 13:02:30 [NOTICE] CFG: Std-Settings stored

Jul 7 13:02:33 [NOTICE] PHN: TPL: Socket 586 idle/connect timeout

Jul 7 13:02:46 [NOTICE] PHN: TPL: Socket 587 idle/connect timeout

Jul 7 13:03:15 [NOTICE] SIP: process auth: Match challenge for user=xxxxxxxxxxx, realm=callcentric.com

Jul 7 13:04:31 [NOTICE] PHN: TPL: Socket 597 idle/connect timeout

Jul 7 13:04:31 [NOTICE] PHN: TPL: Socket 598 idle/connect timeout

Jul 7 13:04:31 [NOTICE] PHN: TPL: Socket 599 idle/connect timeout

Jul 7 13:04:31 [NOTICE] PHN: TPL: Socket 600 idle/connect timeout

Jul 7 13:04:31 [NOTICE] PHN: TPL: Socket 601 idle/connect timeout

Jul 7 13:05:04 [NOTICE] PHN: TPL: Socket 602 idle/connect timeout

Jul 7 13:05:28 [NOTICE] PHN: TPL: Socket 607 idle/connect timeout

Jul 7 13:05:39 [NOTICE] PHN: TPL: Socket 608 idle/connect timeout

Jul 7 13:06:23 [NOTICE] SIP: process auth: Match challenge for user=xxxxxxxxxxx, realm=callcentric.com

Jul 7 13:09:31 [NOTICE] SIP: process auth: Match challenge for user=xxxxxxxxxxx, realm=callcentric.com

Jul 7 13:11:35 [NOTICE] SIP: process auth: Match challenge for user=xxxxxxxxxxx, realm=callcentric.com

Jul 7 13:12:44 [NOTICE] PHN: TPL: Socket 641 idle/connect timeout

Jul 7 13:13:38 [NOTICE] SIP: process auth: Match challenge for user=xxxxxxxxxxx, realm=callcentric.com

Jul 7 13:14:39 [NOTICE] SIP: process auth: Match challenge for user=xxxxxxxxxxx, realm=callcentric.com

Jul 7 13:14:44 [NOTICE] PHN: TPL: Socket 652 idle/connect timeout

Jul 7 13:15:40 [NOTICE] SIP: process auth: Match challenge for user=xxxxxxxxxxx, realm=callcentric.com

Jul 7 13:16:41 [NOTICE] SIP: process auth: Match challenge for user=xxxxxxxxxxx, realm=callcentric.com

Jul 7 13:20:14 [NOTICE] SIP: process auth: Match challenge for user=xxxxxxxxxxx, realm=callcentric.com

Jul 7 13:21:15 [NOTICE] SIP: process auth: Match challenge for user=xxxxxxxxxxx, realm=callcentric.com

Jul 7 13:21:16 [NOTICE] PHN: TPL: Socket 680 idle/connect timeout

Any help would be apperciated

Thanks for the reply. Phone is now showing:

We'll see how it works today.

Still getting messages like:

Jul 8 07:38:47.127 [NOTICE] PHN: TPL: Socket 71 idle/connect timeout

and

Jul 8 07:39:02.228 [NOTICE] SIP: process auth: Match challenge for user=17772151781, realm=callcentric.com

I'll try increasing the NAT connection tracking timeout on my Edgerouter Lite (not sure what the default value is).

But what do these two notices mean?

Why is here no Answer from SNOM since 3 YEARD??? Also no Solution and now I have a similar Problem with the MeetingPoint which has get the last Update years ago. :-(

...

Apr 3 03:55:20.335 [NOTICE] CFG: Std-Settings stored

Apr 3 03:55:23.625 [NOTICE] PHN: TPL: Socket 91 idle/connect timeout

Apr 3 03:55:25.255 [NOTICE] PHN: TPL: Socket 90 idle/connect timeout

Apr 3 03:55:33.765 [NOTICE] PHN: TPL: Socket 94 idle/connect timeout

Apr 3 03:55:44.395 [WARN ] SIP: process_registrar_packet: 401 needs 128 bit nonce

Apr 3 03:55:44.396 [NOTICE] SIP: process auth: Match challenge for user=1...3, realm=sip.s....net

Apr 3 03:55:47.095 [NOTICE] PHN: TPL: Socket 97 idle/connect timeout

Apr 3 03:56:16.295 [NOTICE] PHN: TPL: Socket 101 idle/connect timeout

Apr 3 03:56:20.905 [NOTICE] PHN: TPL: Socket 102 idle/connect timeout

Apr 3 03:56:36.355 [NOTICE] PHN: TPL: Socket 104 idle/connect timeout

Apr 3 03:56:37.365 [NOTICE] PHN: TPL: Socket 105 idle/connect timeout

...

Apr 3 04:46:12.448 [NOTICE] PHN: TPL: Socket 4849 idle/connect timeout

Apr 3 04:46:30.658 [NOTICE] PHN: TPL: Socket 4850 idle/connect timeout

Apr 3 04:46:33.918 [NOTICE] PHN: TPL: Socket 4851 idle/connect timeout

Apr 3 04:46:46.787 [NOTICE] PHN: TPL: Socket 4852 idle/connect timeout

Apr 3 04:47:06.658 [NOTICE] PHN: TPL: Socket 4853 idle/connect timeout

Apr 3 04:47:17.519 [NOTICE] PHN: TPL: Socket 4854 idle/connect timeout

...

Apr 3 05:00:13.230 [NOTICE] PHN: TPL: Socket 20 idle/connect timeout

Apr 3 05:00:13.583 [NOTICE] PHN: TPL: Socket 21 idle/connect timeout

Apr 3 05:01:25.230 [NOTICE] PHN: TPL: Socket 22 idle/connect timeout

Apr 3 05:01:28.350 [NOTICE] PHN: TPL: Socket 23 idle/connect timeout...

...

Apr 3 04:51:32.918 [NOTICE] PHN: TPL: Socket 287 idle/connect timeout

Apr 3 04:51:33.566 [NOTICE] PHN: TPL: Socket 288 idle/connect timeout

Apr 3 04:52:06.419 [NOTICE] PHN: TPL: Socket 289 idle/connect timeout

Apr 3 04:52:07.045 [NOTICE] PHN: TPL: Socket 290 idle/connect timeout

Apr 3 04:52:59.248 [NOTICE] PHN: TPL: Socket 291 idle/connect timeout

Apr 3 04:53:01.189 [NOTICE] PHN: TPL: Socket 292 idle/connect timeout

Also with all other Phones and the new Firmware as it seems.

As asked by Andreas before, it is also my question "But what do these two notices mean?"

And when does the MP get the next STABLE Release?

Thanks