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SIP-T21P_E2 Issue
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ajerez Offline
Junior Member

Posts: 25
Joined: Aug 2013
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Post: #1
SIP-T21P_E2 Issue
Hello support;

We have installed several SIP-T21P_E2 with the latest firmware

When we monitore the client traffic we are facing the next issue:

Randomly the phone rejects the call without even ring, if you search in the missed calls menu for example the call appears as a missed call

In the asterisk log we have the following message:
Got SIP response 486 "Busy Here" back from

It's look like the phone itself reject the call, I enclose the SIP-T21P_E2.pcap file which is a trace get directly form our server, in this file filtering with "VOIP CALLS" you can see a REJECT message

I enclose too two more files:
the file which is generated with the phone pcap utility
the 001565a1c9f5-sys.log.txt file which is the syslog phone file, in that you car filter using the callerid phone number "23367954"

We are 100 % sure that the agent is not rejecting the call on purpose because, as the phones gets the configuration form provisioning all the phones has all the DND options disabled

We have been working a lot with Yealink phones specially with T20 P models and as long as we know this scenario hasn't been reported

This issue causes that agents complains because lot of missed calls that's actually didn't ring at all

If there any thing else that we can send to debug this issue please inform

Thanks in advance
Best Regards

Attached File(s)
.txt  001565a1c9f5-sys.log.txt (Size: 1,023.38 KB / Downloads: 3)
.pcap (Size: 472.75 KB / Downloads: 2)
.pcap  SIP-T21P_E2.pcap (Size: 67.48 KB / Downloads: 1)
11-23-2016 01:13 PM
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Messages In This Thread
SIP-T21P_E2 Issue - ajerez - 11-23-2016 01:13 PM
RE: SIP-T21P_E2 Issue - Karl_Yealink - 11-25-2016, 10:29 AM
RE: SIP-T21P_E2 Issue - Alvaro - 11-26-2016, 07:46 PM
RE: SIP-T21P_E2 Issue - Alvaro - 11-30-2016, 08:43 PM
RE: SIP-T21P_E2 Issue - Karl_Yealink - 12-08-2016, 07:50 AM
RE: SIP-T21P_E2 Issue - Alvaro - 12-08-2016, 08:42 PM
RE: SIP-T21P_E2 Issue - Alvaro - 12-21-2016, 12:16 PM
RE: SIP-T21P_E2 Issue - Karl_Yealink - 12-22-2016, 01:09 AM
RE: SIP-T21P_E2 Issue - Alvaro - 12-22-2016, 12:11 PM
RE: SIP-T21P_E2 Issue - Karl_Yealink - 12-23-2016, 01:15 AM
RE: SIP-T21P_E2 Issue - Alvaro - 12-23-2016, 01:07 PM

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