diff options
Diffstat (limited to 'res/res_rtp_asterisk.c')
| -rw-r--r-- | res/res_rtp_asterisk.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/res/res_rtp_asterisk.c b/res/res_rtp_asterisk.c index 282e187cd..b896d64fa 100644 --- a/res/res_rtp_asterisk.c +++ b/res/res_rtp_asterisk.c @@ -1436,7 +1436,11 @@ static void process_dtmf_rfc2833(struct ast_rtp_instance *instance, unsigned cha } new_duration = (new_duration & ~0xFFFF) | samples; - if (rtp->lastevent > seqno) { + /* The second portion of this check is to not mistakenly + * stop accepting DTMF if the seqno rolls over beyond + * 65535. + */ + if (rtp->lastevent > seqno && rtp->lastevent - seqno < 50) { /* Out of order frame. Processing this can cause us to * improperly duplicate incoming DTMF, so just drop * this. |