[asterisk-bugs] [JIRA] (ASTERISK-30221) Channel masquerades screw up groups

N A (JIRA) noreply at issues.asterisk.org
Sun Sep 11 14:25:09 CDT 2022


     [ https://issues.asterisk.org/jira/browse/ASTERISK-30221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

N A updated ASTERISK-30221:
---------------------------

    Description: 
RELATED to: ASTERISK-30210

So circling back to the weird thing with masquerades:

I don't think it has anything to do with optimizations, per se, I think it's the masquerade itself. For some reason, it seems to consistently screw up groups.

Here is an example of a system caught red handed where, after a masquerade occurs, suddenly all of the groups on all channels on the system suddenly become assigned to a *SINGLE* channel. This includes the bizarre scenario of also having the same group assignment twice on the same channel, such that GROUP_COUNT returns 2 even those there is only one channel in the group. This has the effect afterwards of putting the channel into an infinite loop due to dialplan logic that expects 2 channels.

None of this happened prior to upgrading from 18.9.0 to 18.14.0, so a regression is possible but I'm not yet positive either. It also seems weird that masquerades would be broken in such a a fundamental way.

The group screwing up seems to vary: the example in ASTERISK-30210 simply made all the groups disappear, in this case they all hop onto a single channel even from other channels that still exist (as well as groups that no longer do so).

Note also that this system includes the group variables patch on Gerrit and testing without that is difficult/impossible. The bug could very well be there too, though that doesn't explain why it's only triggered by masquerades.

Example:
{noformat}
voip*CLI> group show channels
Channel                    Group                 Category
PJSIP/ATAxGrandstream1-00000040  PJSIP/ATAxGrandstream1  deviceinuse
PJSIP/ATAxGrandstream1-00000040  1                     lineinuse
PJSIP/ATAxGrandstream1-00000040  1                     oe
PJSIP/ATAxGrandstream1-00000040  1                     oeall
Local/1*4002702122*92310041 at outgoing-00000117;2  1                     oeall
Local/1*4002702122*92310041 at outgoing-00000117;2  1                     lineinuseoutboundunanswered
Local/1*4002702122*92310041 at outgoing-00000117;2  1                     bridgedcalls
Local/2310041 at route-0000011a;2  looparound_231004tone  side
Local/2310041 at route-0000011a;2  looparound_231004     looparound
9 active channels

...

[2022-09-11 19:13:13]     -- Executing [s at loop:10] Bridge("Local/2310042 at route-0000011e;2", "Local/2310041 at route-0000011a;2") in new stack
[2022-09-11 19:13:13]     -- Local/2310042 at route-0000011e;1 answered Local/92310042 at originate-local-0000011c;2
[2022-09-11 19:13:13]     -- Local/92310042 at originate-local-0000011c;1 answered Local/6*4002702128*92310042 at outgoing-0000011b;1
[2022-09-11 19:13:13]     -- Local/92310042 at originate-local-0000011c;1 Internal Gosub(outgoing-ring-answer,s,1) start
[2022-09-11 19:13:13]     -- Executing [s at outgoing-ring-answer:1] ASTREXOutgoingAnswer("Local/92310042 at originate-local-0000011c;1", "") in new stack
[2022-09-11 19:13:14]     -- Channel Local/2310042 at route-0000011e;1 joined 'simple_bridge' basic-bridge <494a5de1-aac8-46f6-a561-f199d443704a>
[2022-09-11 19:13:14]     -- Executing [s at outgoing-ring-answer:2] Return("Local/92310042 at originate-local-0000011c;1", "") in new stack
[2022-09-11 19:13:14]     -- Channel Local/92310042 at originate-local-0000011c;2 joined 'simple_bridge' basic-bridge <494a5de1-aac8-46f6-a561-f199d443704a>
[2022-09-11 19:13:14]   == Spawn extension (originate-local, , 1) exited non-zero on 'Local/92310042 at originate-local-0000011c;1'
[2022-09-11 19:13:14]     -- Local/92310042 at originate-local-0000011c;1 Internal Gosub(outgoing-ring-answer,s,1) complete GOSUB_RETVAL=
[2022-09-11 19:13:14]   == Spawn extension (loop, s, 6) exited non-zero on 'Surrogate/Local/2310041 at route-0000011a;2'

...

[2022-09-11 19:13:14]     -- Channel Local/92310041 at originate-local-00000118;2 joined 'simple_bridge' basic-bridge <34bf92cb-33be-41d1-b822-c56b79c5ff2d>
[2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] <--Read on Channel Local/6*4002702128*92310042 at outgoing-0000011b;2
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
[2022-09-11 19:13:14]     -- Channel Local/92310041 at originate-local-00000118;1 joined 'simple_bridge' basic-bridge <3ce0fb16-2e69-4539-891f-7bbfc10ecb8f>
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: -1
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
[2022-09-11 19:13:14]     -- Channel Local/1*4002702122*92310041 at outgoing-00000117;1 joined 'simple_bridge' basic-bridge <3ce0fb16-2e69-4539-891f-7bbfc10ecb8f>
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: -1
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] <--Read on Channel Local/1*4002702122*92310041 at outgoing-00000117;2
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: -1
[2022-09-11 19:13:14] <--Read on Channel Local/6*4002702128*92310042 at outgoing-0000011b;2
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] <--Read on Channel Local/6*4002702128*92310042 at outgoing-0000011b;2
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: CONNECTED LINE
[2022-09-11 19:13:14] Bytes: 88
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] <--Read on Channel Local/1*4002702122*92310041 at outgoing-00000117;2
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
[2022-09-11 19:13:14] <--Read on Channel Local/6*4002702128*92310042 at outgoing-0000011b;2
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: CONNECTED LINE
[2022-09-11 19:13:14] Bytes: 88
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] SubClass: -1
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] <--Read on Channel Local/6*4002702128*92310042 at outgoing-0000011b;2
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: CONNECTED LINE
[2022-09-11 19:13:14] Bytes: 88
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] <--Read on Channel Local/6*4002702128*92310042 at outgoing-0000011b;2
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] <--Read on Channel Local/1*4002702122*92310041 at outgoing-00000117;2
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] <--Read on Channel Local/1*4002702122*92310041 at outgoing-00000117;2
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: CONNECTED LINE
[2022-09-11 19:13:14] Bytes: 88
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] <--Read on Channel Local/1*4002702122*92310041 at outgoing-00000117;2
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
[2022-09-11 19:13:14] <--Read on Channel Local/1*4002702122*92310041 at outgoing-00000117;2
[2022-09-11 19:13:14] FrameType: CONTROL
[2022-09-11 19:13:14] SubClass: SRCCHANGE
[2022-09-11 19:13:14] Bytes: 0
[2022-09-11 19:13:14] Src: NOT PRESENT
[2022-09-11 19:13:14]
voip*CLI> group show channels
Channel                    Group                 Category
Local/2310041 at route-0000011a;2  PJSIP/ATAxGrandstream1  deviceinuse
Local/2310041 at route-0000011a;2  1                     lineinuse
Local/2310041 at route-0000011a;2  1                     oe
Local/2310041 at route-0000011a;2  1                     oeall
Local/2310041 at route-0000011a;2  1                     oeall
Local/2310041 at route-0000011a;2  1                     lineinuseoutboundunanswered
Local/2310041 at route-0000011a;2  1                     bridgedcalls
Local/2310041 at route-0000011a;2  looparound_231004tone  side
Local/2310041 at route-0000011a;2  looparound_231004     looparound
Local/2310041 at route-0000011a;2  PJSIP/ATAxLB1         deviceinuse
Local/2310041 at route-0000011a;2  6                     lineinuse
Local/2310041 at route-0000011a;2  6                     oe
Local/2310041 at route-0000011a;2  6                     oeall
Local/2310041 at route-0000011a;2  6                     oeall
Local/2310041 at route-0000011a;2  6                     bridgedcalls
Local/2310041 at route-0000011a;2  looparound_231004     side
Local/2310041 at route-0000011a;2  looparound_231004     looparound
Local/2310041 at route-0000011a;2  6                     lineinuseoutboundanswered
Local/1*4002702122*92310041 at outgoing-00000117;2  1                     lineinuseoutboundanswered
19 active channels
{noformat}

  was:
RELATED to: ASTERISK-30210

So circling back to the weird thing with masquerades:

I don't think it has anything to do with optimizations, per se, I think it's the masquerade itself. For some reason, it seems to consistently screw up groups.

Here is an example of a system caught red handed where, after a masquerade occurs, suddenly all of the groups on all channels on the system suddenly become assigned to a *SINGLE* channel. This includes the bizarre scenario of also having the same group assignment twice on the same channel, such that GROUP_COUNT returns 2 even those there is only one channel in the group. This has the effect afterwards of putting the channel into an infinite loop due to dialplan logic that expects 2 channels.

None of this happened prior to upgrading from 18.9.0 to 18.14.0, so a regression is possible but I'm not yet positive either. It also seems weird that masquerades would be broken in such a a fundamental way.

The group screwing up seems to vary: the example in ASTERISK-30210 simply made all the groups disappear, in this case they all hop onto a single channel even from other channels that still exist (as well as groups that no longer do so).

Note also that this system includes the group variables patch on Gerrit and testing without that is difficult/impossible. The bug could very well be there too, though that doesn't explain why it's only triggered by masquerades.


> Channel masquerades screw up groups
> -----------------------------------
>
>                 Key: ASTERISK-30221
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-30221
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/Bridging, Functions/func_groupcount
>    Affects Versions: 18.14.0
>            Reporter: N A
>            Severity: Major
>
> RELATED to: ASTERISK-30210
> So circling back to the weird thing with masquerades:
> I don't think it has anything to do with optimizations, per se, I think it's the masquerade itself. For some reason, it seems to consistently screw up groups.
> Here is an example of a system caught red handed where, after a masquerade occurs, suddenly all of the groups on all channels on the system suddenly become assigned to a *SINGLE* channel. This includes the bizarre scenario of also having the same group assignment twice on the same channel, such that GROUP_COUNT returns 2 even those there is only one channel in the group. This has the effect afterwards of putting the channel into an infinite loop due to dialplan logic that expects 2 channels.
> None of this happened prior to upgrading from 18.9.0 to 18.14.0, so a regression is possible but I'm not yet positive either. It also seems weird that masquerades would be broken in such a a fundamental way.
> The group screwing up seems to vary: the example in ASTERISK-30210 simply made all the groups disappear, in this case they all hop onto a single channel even from other channels that still exist (as well as groups that no longer do so).
> Note also that this system includes the group variables patch on Gerrit and testing without that is difficult/impossible. The bug could very well be there too, though that doesn't explain why it's only triggered by masquerades.
> Example:
> {noformat}
> voip*CLI> group show channels
> Channel                    Group                 Category
> PJSIP/ATAxGrandstream1-00000040  PJSIP/ATAxGrandstream1  deviceinuse
> PJSIP/ATAxGrandstream1-00000040  1                     lineinuse
> PJSIP/ATAxGrandstream1-00000040  1                     oe
> PJSIP/ATAxGrandstream1-00000040  1                     oeall
> Local/1*4002702122*92310041 at outgoing-00000117;2  1                     oeall
> Local/1*4002702122*92310041 at outgoing-00000117;2  1                     lineinuseoutboundunanswered
> Local/1*4002702122*92310041 at outgoing-00000117;2  1                     bridgedcalls
> Local/2310041 at route-0000011a;2  looparound_231004tone  side
> Local/2310041 at route-0000011a;2  looparound_231004     looparound
> 9 active channels
> ...
> [2022-09-11 19:13:13]     -- Executing [s at loop:10] Bridge("Local/2310042 at route-0000011e;2", "Local/2310041 at route-0000011a;2") in new stack
> [2022-09-11 19:13:13]     -- Local/2310042 at route-0000011e;1 answered Local/92310042 at originate-local-0000011c;2
> [2022-09-11 19:13:13]     -- Local/92310042 at originate-local-0000011c;1 answered Local/6*4002702128*92310042 at outgoing-0000011b;1
> [2022-09-11 19:13:13]     -- Local/92310042 at originate-local-0000011c;1 Internal Gosub(outgoing-ring-answer,s,1) start
> [2022-09-11 19:13:13]     -- Executing [s at outgoing-ring-answer:1] ASTREXOutgoingAnswer("Local/92310042 at originate-local-0000011c;1", "") in new stack
> [2022-09-11 19:13:14]     -- Channel Local/2310042 at route-0000011e;1 joined 'simple_bridge' basic-bridge <494a5de1-aac8-46f6-a561-f199d443704a>
> [2022-09-11 19:13:14]     -- Executing [s at outgoing-ring-answer:2] Return("Local/92310042 at originate-local-0000011c;1", "") in new stack
> [2022-09-11 19:13:14]     -- Channel Local/92310042 at originate-local-0000011c;2 joined 'simple_bridge' basic-bridge <494a5de1-aac8-46f6-a561-f199d443704a>
> [2022-09-11 19:13:14]   == Spawn extension (originate-local, , 1) exited non-zero on 'Local/92310042 at originate-local-0000011c;1'
> [2022-09-11 19:13:14]     -- Local/92310042 at originate-local-0000011c;1 Internal Gosub(outgoing-ring-answer,s,1) complete GOSUB_RETVAL=
> [2022-09-11 19:13:14]   == Spawn extension (loop, s, 6) exited non-zero on 'Surrogate/Local/2310041 at route-0000011a;2'
> ...
> [2022-09-11 19:13:14]     -- Channel Local/92310041 at originate-local-00000118;2 joined 'simple_bridge' basic-bridge <34bf92cb-33be-41d1-b822-c56b79c5ff2d>
> [2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] <--Read on Channel Local/6*4002702128*92310042 at outgoing-0000011b;2
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
> [2022-09-11 19:13:14]     -- Channel Local/92310041 at originate-local-00000118;1 joined 'simple_bridge' basic-bridge <3ce0fb16-2e69-4539-891f-7bbfc10ecb8f>
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: -1
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
> [2022-09-11 19:13:14]     -- Channel Local/1*4002702122*92310041 at outgoing-00000117;1 joined 'simple_bridge' basic-bridge <3ce0fb16-2e69-4539-891f-7bbfc10ecb8f>
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: -1
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] <--Read on Channel Local/1*4002702122*92310041 at outgoing-00000117;2
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: -1
> [2022-09-11 19:13:14] <--Read on Channel Local/6*4002702128*92310042 at outgoing-0000011b;2
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] <--Read on Channel Local/6*4002702128*92310042 at outgoing-0000011b;2
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: CONNECTED LINE
> [2022-09-11 19:13:14] Bytes: 88
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] <--Read on Channel Local/1*4002702122*92310041 at outgoing-00000117;2
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
> [2022-09-11 19:13:14] <--Read on Channel Local/6*4002702128*92310042 at outgoing-0000011b;2
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: CONNECTED LINE
> [2022-09-11 19:13:14] Bytes: 88
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] SubClass: -1
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] <--Read on Channel Local/6*4002702128*92310042 at outgoing-0000011b;2
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/6*4002702128*92310042 at outgoing-0000011b;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: CONNECTED LINE
> [2022-09-11 19:13:14] Bytes: 88
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] <--Read on Channel Local/6*4002702128*92310042 at outgoing-0000011b;2
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] <--Read on Channel Local/1*4002702122*92310041 at outgoing-00000117;2
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] <--Read on Channel Local/1*4002702122*92310041 at outgoing-00000117;2
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: CONNECTED LINE
> [2022-09-11 19:13:14] Bytes: 88
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] --> Write on Channel Local/1*4002702122*92310041 at outgoing-00000117;1
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] <--Read on Channel Local/1*4002702122*92310041 at outgoing-00000117;2
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> [2022-09-11 19:13:14] <--Read on Channel Local/1*4002702122*92310041 at outgoing-00000117;2
> [2022-09-11 19:13:14] FrameType: CONTROL
> [2022-09-11 19:13:14] SubClass: SRCCHANGE
> [2022-09-11 19:13:14] Bytes: 0
> [2022-09-11 19:13:14] Src: NOT PRESENT
> [2022-09-11 19:13:14]
> voip*CLI> group show channels
> Channel                    Group                 Category
> Local/2310041 at route-0000011a;2  PJSIP/ATAxGrandstream1  deviceinuse
> Local/2310041 at route-0000011a;2  1                     lineinuse
> Local/2310041 at route-0000011a;2  1                     oe
> Local/2310041 at route-0000011a;2  1                     oeall
> Local/2310041 at route-0000011a;2  1                     oeall
> Local/2310041 at route-0000011a;2  1                     lineinuseoutboundunanswered
> Local/2310041 at route-0000011a;2  1                     bridgedcalls
> Local/2310041 at route-0000011a;2  looparound_231004tone  side
> Local/2310041 at route-0000011a;2  looparound_231004     looparound
> Local/2310041 at route-0000011a;2  PJSIP/ATAxLB1         deviceinuse
> Local/2310041 at route-0000011a;2  6                     lineinuse
> Local/2310041 at route-0000011a;2  6                     oe
> Local/2310041 at route-0000011a;2  6                     oeall
> Local/2310041 at route-0000011a;2  6                     oeall
> Local/2310041 at route-0000011a;2  6                     bridgedcalls
> Local/2310041 at route-0000011a;2  looparound_231004     side
> Local/2310041 at route-0000011a;2  looparound_231004     looparound
> Local/2310041 at route-0000011a;2  6                     lineinuseoutboundanswered
> Local/1*4002702122*92310041 at outgoing-00000117;2  1                     lineinuseoutboundanswered
> 19 active channels
> {noformat}



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