[asterisk-bugs] [JIRA] (ASTERISK-26500) DTMF RFC2833 with timestamp 0 are ignored

[Thomas Sevestre (JIRA)]

Thomas Sevestre created ASTERISK-26500:
------------------------------------------

             Summary: DTMF RFC2833 with timestamp 0 are ignored
                 Key: ASTERISK-26500
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26500
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Resources/res_rtp_asterisk
    Affects Versions: 14.0.2, 1.8.32.3
            Reporter: Thomas Sevestre


In function process_dtmf_rfc2833, the "Dropping out of order DTMF frame" test drops all DTMF with timestamp 0. Some equipments always send the first DTMF with timestamp 0. This leads to drop the first DTMF of each call.

I've fixed the problem by changing this :

if ((rtp->last_seqno > seqno && rtp->last_seqno - seqno < 50)
	|| timestamp <= rtp->last_end_timestamp) {

into this:

if ((rtp->last_seqno > seqno && rtp->last_seqno - seqno < 50)
	|| (timestamp != 0 && timestamp <= rtp->last_end_timestamp)) {





--
This message was sent by Atlassian JIRA
(v6.2#6252)