[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
Noise at the beginning of a call
Author Message
edlentz Offline
Junior Member

Posts: 8
Joined: Apr 2013
Reputation: 0
Post: #1
Noise at the beginning of a call
I have a customer that has 25 T26 V7 phones behing a Freepbx system version 2.11. They are using a Grandstream GXW4108 for the phone lines. Occasionally on an outbound call we get what appears to be two touchtones playing simultaneously for the first 4 -6 seconds of the call when it is being connected. I have run TCPdump on the Freepbx, don't hear it there. I ran the Pcap on the Grandstream, not there. I have run the Pcap capture on the T26 and it isn't there, although there were some RTP packets out of sequence. (6%). I enabled the jitter buffer in freepbx (200ms), but alas it is still there. I say it isn't there meaning I do not hear the noise when I playback the audio through Wireshark.

Has anyone got any clue what might be going on here?

Thanks for any ideas!
01-30-2015 02:52 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 

Messages In This Thread
Noise at the beginning of a call - edlentz - 01-30-2015 02:52 AM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Weird noise when answering via speakerphone nestman 6 17,195 06-16-2021 03:05 AM
Last Post: nestman
  T28P foward call doesn´t work with Tato 4 10,388 09-14-2020 03:49 PM
Last Post: complex1
Exclamation T28P Handset Noise Problems fdtcloud 18 58,612 01-14-2019 04:23 PM
Last Post: dtgriscom
  Call forwarding with SIP devices Yealink and Cisco Call Manager CUCM joao.schlemm 7 22,957 08-03-2018 08:03 PM
Last Post: MarkLReed
Photo Yealink T21P E2 displays VIA and FROM headers on incoming call DmitryTsyganov 1 6,370 07-12-2018 07:28 PM
Last Post: johnkiniston
  T21P-E2 sends a CANCEL to put a call in hold Diego Juan 0 4,485 03-23-2018 02:52 PM
Last Post: Diego Juan
  Call Queue not working with the Grandstream UCM6202 ttran 8 20,400 03-04-2018 06:42 PM
Last Post: Adnanka
  T29G DSSKey functionality alternative number call AresK 4 11,173 12-13-2017 06:56 AM
Last Post: Evan_Yealink
  When I call outside, there's no call waiting tone highlander 3 9,418 11-15-2017 04:04 PM
Last Post: highlander
  Call Forward on T21P E2 not working gradash 8 20,735 05-23-2017 09:44 PM
Last Post: jolouis

Forum Jump:

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

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