[YMCS/YDMP Free Trial Program]Yealink would like to offer Free Trial Program of Yealink device management service for our current eligible customers. You can see the details below.
https://www.yealink.com/ydmp-freetrial-2020


Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
T38G Not Sending a BYE - Freeswitch
Author Message
rwhitlatch Offline
Junior Member
**

Posts: 8
Joined: May 2015
Reputation: 0
Post: #1
T38G Not Sending a BYE - Freeswitch
Hey Guys,
I have a bunch of T38G phones that we converted over to Freeswitch from Asterisk. They are no longer sending BYE signals on inter-office calls. In the attached pcap i called extension 119. When they picked up, we had audio, and I had a Cancel button. After we talked, I hit Cancel, and the other end of the call still showed that it was connected. System config, pcap, and syslog level 6 attached. I upgraded to the newest firmware as well in an attempt to resolve the issue.


Attached File(s)
.bin  config (1).bin (Size: 187.5 KB / Downloads: 1)
.tar  syslog (3).tar (Size: 370 KB / Downloads: 1)
.pcap  38.70.0.185_17-39-53.pcap (Size: 415.17 KB / Downloads: 3)
05-30-2015 05:25 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Elaine_Yealink Offline
Super Moderator
******

Posts: 152
Joined: Aug 2014
Reputation: 4
Post: #2
RE: T38G Not Sending a BYE - Freeswitch
Dear,

When on a call, if you press the hook, are you able to hang up the call?
To foreclose the configuration issue, please take one of them, reset it to factory default, register an account only and then dial a call to have a test.

Please share with me the result.
Regards
Elaine
05-30-2015 11:38 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
rwhitlatch Offline
Junior Member
**

Posts: 8
Joined: May 2015
Reputation: 0
Post: #3
RE: T38G Not Sending a BYE - Freeswitch
Hey Elaine,
I did try in one test to pick up the handset while talking on speakerphone, and then hanging up using the handset, and I had the same result. I will be back in the office Monday to continue testing.
I assure you that I did factory default prior to any configuration changes. Monday I will factory default again, and just register a line, then retest. Is it normal to see the word cancel on the screen when a call has been set up instead of something like 'end call'? I found that odd based on other phone manufacturers I have played with.

~Rob
05-30-2015 08:36 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
rwhitlatch Offline
Junior Member
**

Posts: 8
Joined: May 2015
Reputation: 0
Post: #4
RE: T38G Not Sending a BYE - Freeswitch
Elaine,
I discovered the issue. I factory-reset as promised and manually provisioned phone.

1. As a test, I provisioned the phone with transport UDP and created a DNS A-record for one of my servers. I put that in the outbound proxy, enabled the outbound proxy, and saved. The phone properly signaled the BYE upon termination of the test call.
2. I set the phone back to my transport that I was using in my provisioning files - (DNS-SRV) and put my SRV record back in as the outbound proxy. I then made the same test call and confirmed that the phone did not signal a BYE.

So based on this testing, I have concluded there is a bug in the firmware for proper RFC SIP Signaling if the transport is set to DNS-SRV. If you need any additional files or pcaps, please let me know and i'll happily create some and upload.
06-02-2015 12:29 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
rwhitlatch Offline
Junior Member
**

Posts: 8
Joined: May 2015
Reputation: 0
Post: #5
RE: T38G Not Sending a BYE - Freeswitch
Elaine,
Were you able to confirm my findings on this potential firmware bug?
06-02-2015 06:27 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
phnau Offline
Junior Member
**

Posts: 3
Joined: Jul 2015
Reputation: 0
Post: #6
RE: T38G Not Sending a BYE - Freeswitch
is there any resolution to this? I am having same problem
is this addressed in any of the software releases ?
08-18-2015 10:57 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  T28P & T38G: Speed Dial delay or pause between DTMF yoda72 68 231,780 08-18-2019 09:06 PM
Last Post: HotlineExperts
  T38G reboots and answers call in speaker mode jraposinho 3 7,444 04-07-2017 08:02 PM
Last Post: ClearCall
  T28 and T38G Randomly using loudspeaker Jadzia 2 5,163 08-18-2016 08:41 AM
Last Post: Jadzia
  Forward Calls T38G jraposinho 1 5,236 03-15-2016 07:21 PM
Last Post: Karl_Yealink
  T27 V80 Firmware - BLFs Inoperable with Freeswitch rwhitlatch 11 17,634 01-20-2016 10:20 PM
Last Post: deutschnaftyula
  sip-t38g Repair rkellogg 1 4,320 10-31-2015 12:09 PM
Last Post: Klaus_Yealink
  T38G Incoming call pickup while on call. sac1500 0 3,707 10-02-2015 11:05 PM
Last Post: sac1500
  Gigabit Color IP Phone SIP-T38G softy783 1 5,184 12-28-2014 06:16 AM
Last Post: CWR
  Ooma and the SIP-T38g mppennington 1 6,417 08-13-2014 08:30 PM
Last Post: Yealink Support
  T38G 38.70.0.125 -> 38.70.0.132 IPv6 broken bschmidt 3 10,837 08-21-2013 10:50 AM
Last Post: Yealink Support

Forum Jump:


User(s) browsing this thread: 1 Guest(s)

Contact Us   Yealink   Return to Top   Return to Content   Lite (Archive) Mode   RSS Syndication