[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:
  • 1 Votes - 4 Average
  • 1
  • 2
  • 3
  • 4
  • 5
DTMF Not Sent RFC2833 When Keys Pressed Quickly
Author Message
kg4ysy Offline
Member
***

Posts: 65
Joined: May 2013
Reputation: 2
Post: #1
DTMF Not Sent RFC2833 When Keys Pressed Quickly
I've noticed a problem with DTMF on the T32 when pressing keys quickly or for short durations. The phone itself adds the digit to the display and it plays the DTMF tone. When looking at the RTP stream, that digit isn't sent. I pressed the keys very quickly.

I'm attaching the pcap trace from the phone and a section of log file for this call. You can see that the phone log shows 4736# being recognized and sent. When looking at the pcap trace, you'll see that only 4736 was sent to the phone switch. I can switch to SIP INFO for DTMF, but I'd rather not. Any thoughts?

374725 Feb 11 13:13:46 192.168.1.184 syslog[414]: [0413] 146770851 [TALK][***CBaseRoutine::OnDTMFChanged***] iSendKey=4 m_eDTMFType=1
374741 Feb 11 13:13:46 192.168.1.184 syslog[414]: [0413] 146771025 [TALK][***CBaseRoutine::OnDTMFChanged***] iSendKey=7 m_eDTMFType=1
374761 Feb 11 13:13:53 192.168.1.184 syslog[414]: [0413] 146771204 [TALK][***CBaseRoutine::OnDTMFChanged***] iSendKey=3 m_eDTMFType=1
374777 Feb 11 13:13:53 192.168.1.184 syslog[414]: [0413] 146771374 [TALK][***CBaseRoutine::OnDTMFChanged***] iSendKey=6 m_eDTMFType=1
374795 Feb 11 13:13:53 192.168.1.184 syslog[414]: [0413] 146771485 [TALK][***CBaseRoutine::OnDTMFChanged***] iSendKey=11 m_eDTMFType=1


Attached File(s)
.pcap  dtmf.pcap (Size: 200.46 KB / Downloads: 3)
02-11-2015 09:27 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
James_Yealink Offline
Administrator
*******

Posts: 1,159
Joined: Aug 2014
Reputation: 8
Post: #2
RE: DTMF Not Sent RFC2833 When Keys Pressed Quickly
Hi,

The problem should only happen when two DTMF are inputted very quickly.
Unfortunatelly there is no an option can decrease DTMF duration in T32. You may have to make your input a little slow or change the DTMF type.

Sorry for this inconvenience.

Regards,
James
02-12-2015 02:19 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
aron Offline
Junior Member
**

Posts: 3
Joined: Mar 2015
Reputation: 0
Post: #3
RE: DTMF Not Sent RFC2833 When Keys Pressed Quickly
(02-12-2015 02:19 PM)Yealink_James Wrote:  Hi,

The problem should only happen when two DTMF are inputted very quickly.
Unfortunatelly there is no an option can decrease DTMF duration in T32. You may have to make your input a little slow or change the DTMF type.

Sorry for this inconvenience.

Regards,
James

Very sad to hear so, as this very quick is not so quick though. please define what very quick should mean? I consider the gap between 1 key press to the other to be long enough that the rfc2833 events should able to be generated reliably.
03-21-2015 05:43 AM
Find all posts by this user    like1    dislike0 Quote this message in a reply
aron Offline
Junior Member
**

Posts: 3
Joined: Mar 2015
Reputation: 0
Post: #4
RE: DTMF Not Sent RFC2833 When Keys Pressed Quickly
same for t28 and t26
03-24-2015 12:16 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
James_Yealink Offline
Administrator
*******

Posts: 1,159
Joined: Aug 2014
Reputation: 8
Post: #5
RE: DTMF Not Sent RFC2833 When Keys Pressed Quickly
Hi Aron,

What's the firmware of T28 and T26 in your side?
Please upgrade them to latest firmware(V73) and check again.

Regards,
James
03-24-2015 12:29 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
  Yealink T38G Hide DTMF Option carlosn 7 23,426 12-08-2015 02:05 AM
Last Post: carlosgamboa06
  No DTMF Feedback when on DTMF INFO kg4ysy 1 7,454 06-23-2015 11:15 PM
Last Post: Flora_Yealink
  DTMF tones used in a call phoneguy1962 1 8,458 05-27-2013 10:32 AM
Last Post: Yealink Support
  Index is off when configuring Line Keys as BLF via provisioning PaulC 1 9,060 04-01-2013 04:26 PM
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