Re: [asterisk-users] Hangup() not working for handsets using pls transport?

[Ruisheng Peng]

Sorry, my bad.  I failed to change the transport to tls on the provision
for the hardphone, nor did change the transport on the linphone setup.
However, after I do that, the hardphone (Yealink T32G) failed to register,
citing:

[Feb 11 14:16:03] WARNING[24936]: pjproject: :SSL
SSL_ERROR_SSL (Handshake): Level: 0 err: <336027900>  len: 0 peer:
128.171.77.34:30401

on the linphone side, it also fails to register:

2021-02-11 13:26:32:637 [linphone/belle-sip] MESSAGE Trying to connect to
[TLS://:::128.171.77.23:5061]

2021-02-11 13:26:32:652 [linphone/belle-sip] MESSAGE Channel
[0x7fc8b800]: Connected at TCP level, now doing TLS handshake with
cname=128.171.77.23

2021-02-11 13:26:32:654 [linphone/belle-sip] MESSAGE Channel
[0x7fc8b800]: SSL handshake in progress...

2021-02-11 13:26:32:674 [linphone/belle-sip] MESSAGE Found certificate
depth=[2], flags=[]:

cert. version : 3

serial number : 44:AF:B0:80:D6:A3:27:BA:89:30:39:86:2E:F8:40:6B

issuer name   : O=Digital Signature Trust Co., CN=DST Root CA X3

subject name  : O=Digital Signature Trust Co., CN=DST Root CA X3

issued  on: 2000-09-30 21:12:19

expires on: 2021-09-30 14:01:15

signed using  : RSA with SHA1

RSA key size  : 2048 bits

basic constraints : CA=true

key usage : Key Cert Sign, CRL Sign


2021-02-11 13:26:32:674 [linphone/belle-sip] MESSAGE Found certificate
depth=[1], flags=[]:

cert. version : 3

serial number : 40:01:75:04:83:14:A4:C8:21:8C:84:A9:0C:16:CD:DF

issuer name   : O=Digital Signature Trust Co., CN=DST Root CA X3

subject name  : C=US, O=Let's Encrypt, CN=R3

issued  on: 2020-10-07 19:21:40

expires on: 2021-09-29 19:21:40

signed using  : RSA with SHA-256

RSA key size  : 2048 bits

basic constraints : CA=true, max_pathlen=0

key usage : Digital Signature, Key Cert Sign, CRL Sign

ext key usage : TLS Web Server Authentication, TLS Web Client
Authentication


2021-02-11 13:26:32:674 [linphone/belle-sip] MESSAGE Found certificate
depth=[0], flags=[CN-mismatch ]:

cert. version : 3

serial number : 03:F0:83:3C:5D:41:76:BC:4E:B2:E6:AB:60:8C:F9:5E:27:86

issuer name   : C=US, O=Let's Encrypt, CN=R3

subject name  : CN=voip1.ifa.hawaii.edu

issued  on: 2020-12-30 02:56:29

expires on: 2021-03-30 02:56:29

signed using  : RSA with SHA-256

RSA key size  : 2048 bits

basic constraints : CA=false

subject alt name  : voip1.ifa.hawaii.edu

key usage : Digital Signature, Key Encipherment

ext key usage : TLS Web Server Authentication, TLS Web Client
Authentication


2021-02-11 13:26:32:674 [linphone/belle-sip] ERROR Channel
[0x7fc8b800]: SSL handshake failed : X509 - Certificate verification
failed, e.g. CRL, CA or signature check failed

2021-02-11 13:26:32:674 [linphone/belle-sip] ERROR Cannot connect to [TLS://
128.171.77.23:5061]


On Mon, Feb 8, 2021 at 12:27 PM Joshua C. Colp  wrote:

> On Mon, Feb 8, 2021 at 6:14 PM Ruisheng Peng  wrote:
>
>> Thanks Jashua for the suggestion.  To find out if the issue was only
>> limited to the softphone that was using tls transport (SOFTPHONE_B on ext
>> 103, a linphone running off my MBP), I also turned one of the hard phone
>> (f30A0A01 on ext 100, a Yealink T32G) into using tls transport.  It
>> behaves similarly to the linphone in that the Hangup() call in dialplan is
>> silently ignored, and the handsets would alway appear as busy/unavilable.
>>
>
> Have you configured the devices, on them or using their provisioning, to
> use TLS? It does not appear so as they are using UDP, while you're forcing
> a TLS transport in Asterisk. This would not work.
>
> --
> Joshua C. Colp
> Asterisk Technical Lead
> Sangoma Technologies
> Check us out at www.sangoma.com and www.asterisk.org
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[asterisk-users] Calls sometimes ring through to paused agents on Asterisk 16.

[Steve Sether]

We have an auto-pause feature where agents are paused after a call, and 
manually un-pause when they're finished with wrap-up. This worked 
perfectly in Asterisk 11.


We've recently switched to Asterisk 16, and we now occasionally hear 
reports of users saying a call rang-through after the auto-pause.  The 
initial thought that this happened during the brief time the call ended, 
and the time the pause was activated. So we added a custom state to the 
device that answered the call set to INUSE as soon as the call was 
answered.  Once the call was completed, the agent gets paused, and only 
then does the state get set to UNAVAILABLE.  Hints are set appropriately 
for the user. Testing manually by setting this custom state stops queue 
calls from getting to the user.


We still occasionally get ring troughs though.  It happens somewhat 
rarely, and likely works fine 99% of the time.


We've tried testing this using sipp to create a lot of queue calls.  
Even with a high load of around 40 calls distributed on 2 queues we 
haven't been able to reproduce the behavior.  We've tried answering more 
than 70 calls in a test environment, and none have reproduced the 
ring-through behavior.


Has anyone seen any similar behavior in queues in Asterisk 16 where a 
call goes to an agent even though they're paused/INUSE? Any other 
suggestions are appreciated, though gathering more data is especially 
difficult since the event seems to be rare.


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