[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.

Post Reply 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
sip-t38g Repair
Author Message
Klaus_Yealink Offline
Super Moderator

Posts: 180
Joined: Jul 2015
Reputation: 0
Post: #2
RE: sip-t38g Repair

Thanks for your infomation!

Form your description,do you mean the scenario is that after you press the "speaker" button,there is no "du du" voice?

or when the call set up,you can not hear the voice of other side with speaker mode?

if not,please point out if any misunderstanding!

if yes,please adjust the volume to biggest after you press the speaker button firstly,then test again!

after that,if this issue still exist,please upgrad to the last formware( and rest to factory,then test again!

you can download the last firmware from the below link:


after you finished the above operations,if this issue still exist,Please send the level 6 system log, config.bin file and PCAP traces to


About how to get these files, please refer to this FAQ:



10-31-2015 12:09 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 

Messages In This Thread
sip-t38g Repair - rkellogg - 10-31-2015, 05:09 AM
RE: sip-t38g Repair - Klaus_Yealink - 10-31-2015 12:09 PM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  T28P & T38G: Speed Dial delay or pause between DTMF yoda72 68 317,245 08-18-2019 09:06 PM
Last Post: HotlineExperts
  T38G reboots and answers call in speaker mode jraposinho 3 11,107 04-07-2017 08:02 PM
Last Post: ClearCall
  T28 and T38G Randomly using loudspeaker Jadzia 2 7,857 08-18-2016 08:41 AM
Last Post: Jadzia
  Forward Calls T38G jraposinho 1 7,402 03-15-2016 07:21 PM
Last Post: Karl_Yealink
  T38G Incoming call pickup while on call. sac1500 0 5,494 10-02-2015 11:05 PM
Last Post: sac1500
  T38G Not Sending a BYE - Freeswitch rwhitlatch 5 14,187 08-18-2015 10:57 AM
Last Post: phnau
  Gigabit Color IP Phone SIP-T38G softy783 1 7,521 12-28-2014 06:16 AM
Last Post: CWR
  Ooma and the SIP-T38g mppennington 1 8,554 08-13-2014 08:30 PM
Last Post: Yealink Support
  T38G -> IPv6 broken bschmidt 3 15,042 08-21-2013 10:50 AM
Last Post: Yealink Support
  T28P&T38G "Softkey:Dial" not working in XML Browser crtg08 6 24,805 06-21-2013 04:27 AM
Last Post: CWR

Forum Jump:

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

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