[asterisk-bugs] [JIRA] (ASTERISK-28739) Dropping redundant connected line update

[David Cunningham (JIRA)]

David Cunningham created ASTERISK-28739:
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             Summary: Dropping redundant connected line update
                 Key: ASTERISK-28739
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28739
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/General
    Affects Versions: 13.29.2
         Environment: Debian 9 64 bit
            Reporter: David Cunningham
            Severity: Minor


We are seeing a "Dropping redundant connected line update" message in the Asterisk log which appears to be incorrect.

The channel with the update is created by a Dial out from Asterisk to a SIP telephone:

[Feb 13 14:05:01] DEBUG[2899] manager.c: Examining AMI event:
Event: Newexten
Privilege: call,all
Timestamp: 1581563101.208429
Channel: SIP/AAA.AAA.52.245:5060-000002f0
ChannelState: 0
ChannelStateDesc: Down
CallerIDNum: 897
CallerIDName: John
ConnectedLineNum: 897
ConnectedLineName: John
Language: en
AccountCode: 
Context: from-external
Exten: 171373917
Priority: 1
Uniqueid: 1581563101.2732
Linkedid: 1581563101.2729
Extension: 171373917
Application: AppDial
AppData: (Outgoing Line)

This results in an INVITE:

[Feb 13 14:05:01] VERBOSE[23326][C-0000019a] chan_sip.c: Reliably Transmitting (NAT) to AAA.AAA.52.245:5060:
INVITE sip:171373917 at AAA.AAA.52.245:5060 SIP/2.0
Via: SIP/2.0/UDP AAA.AAA.52.245:5070;branch=z9hG4bK76f896c2;rport
Max-Forwards: 70
From: "John" <sip:897 at AAA.AAA.52.245:5070>;tag=as0795e872
To: <sip:171373917 at AAA.AAA.52.245:5060>
Contact: <sip:897 at AAA.AAA.52.245:5070>
Call-ID: 2baf801c5631714d53c92b27735249a6 at AAA.AAA.52.245:5070

Later we try to update the callerid to 0123456789 via the AMI however Asterisk rejects it:

[Feb 13 14:05:07] DEBUG[23424] manager.c: Running action 'Login'
[Feb 13 14:05:07] DEBUG[23424] manager.c: Running action 'Setvar'
[Feb 13 14:05:07] DEBUG[23424] channel.c: SIP/AAA.AAA.52.245:5060-000002f0: Dropping redundant connected line update "0123456789" <0123456789>.
[Feb 13 14:05:07] DEBUG[23424] manager.c: Running action 'Logoff'

Reading the Asterisk code, I believe it should only be considered redundant if the callerid is unchanged, but here it really is different.
Please let us know what else is needed to debug this issue. Thank you.




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