|
Hello, I just wanted to comment and ask for advice on how to fix a
DTMF recognition problem that apparently has been affecting asterisk users for
a long time now. Duplicate digits are detected by Asterisk specifically when
using out of band tone recognition. I've done extensive testing with detailed debug traces with
one of our partner providers. The scenario is the following: - RFC2833 standard configured on both end-points. - RFC2833 functionality has been confirmed receiving the
traditional 6 packets per DTFM RTP Event: 3 for the Event Start and 3 for the Event
End. This has been done using tethereal in one end and ethereal in the other
(tethereal on the Asterisk server where only CLI has been installed). The test consisted on the 2 following types of calls: 1) Call from analog headset in the following way: - Scheme: Provider (RFC2833) => SIP => Asterisk Server (RFC
2833) - Diagnostic: * Correct amount of RTP Event Packets. * Additional Payload RTP Event Packets
seen. * Duplicate recognition, wrong number. 2) Call from analog headset pressing the MUTE button under
the same scenario: - Diagnostic: * Correct amount of RTP Event Packets. * No Payload Packets around RTP Event
Packets. * Correct Number recognition. After asking for advice from Asterisk users, I was told
Asterisk doesn't seem to stop performing in-band DTMF tone recognition while
doing out of band. Consequences: This represents a big problem in our environment where IVR
development is essential and where we work with different providers that deliver
different levels of audio, meaning that one with an increased level with tend
to produce on Asterisk duplicate tone recognition if set to a an out of band
method. We'll greatly appreciate the advice, new services’
release is being held up because of this fault. Thanks in advance for your support. Comments on this type of problem can be seen in this bug
report: http://bugs.digium.com/view.php?id=5970 Regards, Web: http://www.comtel-networks.com Venezuela Teléfono: (0500) MAXITEL
– ext. 1011001 Fax: (0212) 953-0769 USA Phone: 1 (877) 467-2877 – ext. 1011001 Fax: (954) 671-6800 Comtel Networks, Corp. - Proprietary and
Confidential |
BEGIN:VCARD VERSION:2.1 N:Glucksmann;Max FN:Max Glucksmann (Fax del trabajo) ORG:ComTel Networks, Corp. TITLE:Director TEL;WORK;VOICE:+1 (877) 467-2877 TEL;HOME;VOICE:+58 (500) MAXITEL (629-4835) TEL;CELL;VOICE:+58 (414) 250-0909 TEL;WORK;FAX:+1 (954) 671-6800 TEL;HOME;FAX:+58 (212) 285-3320 ADR;WORK:;;Aerocav 1614, PO Box 25304;Miami;FL.;33102-5304;Estados Unidos de América LABEL;WORK;ENCODING=QUOTED-PRINTABLE:Aerocav 1614, PO Box 25304=0D=0AMiami, FL. 33102-5304=0D=0AEstados Unidos de= Am=E9rica EMAIL;PREF;FAX:Max Glucksmann ([EMAIL PROTECTED])@+1 (954) 671-6800 REV:20051212T222729Z END:VCARD
_______________________________________________ --Bandwidth and Colocation provided by Easynews.com --
Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
