Version 6.6
181
MP-11x & MP-124
User's Manual
14. Media
14.3.3 Dual-Tone Multi-Frequency Signaling
This section describes the configuration of Dual-Tone Multi-Frequency (DTMF) signaling.
14.3.3.1 Configuring DTMF Transport Types
The device supports various methods for transporting DTMF digits over the IP network to
the remote endpoint. These methods and their configuration are configured in the DTMF &
Dialing page (
Configuration
tab >
VoIP
menu >
GW and IP to IP
>
DTMF and
Supplementary
>
DTMF & Dialing
):
Using INFO message according to Nortel IETF draft:
DTMF digits are sent to the
remote side in INFO messages. To enable this mode, define the following:
a.
Set the 'Declare RFC 2833 in SDP' parameter to
No
(RxDTMFOption = 0).
b.
Set the '1st Tx DTMF Option' parameter to
INFO (Nortel)
(TxDTMFOption = 1).
Note:
In this mode, DTMF digits are removed from the audio stream (and the 'DTMF
Transport Type' parameter is automatically set to
Mute DTMF
).
Using INFO message according to Cisco’s mode:
DTMF digits are sent to the
remote side in INFO messages. To enable this mode, define the following:
a.
Set the 'Declare RFC 2833 in SDP' parameter to
No
(RxDTMFOption = 0).
b.
Set the '1st Tx DTMF Option' parameter to
INFO (Cisco)
(TxDTMFOption = 3).
Note:
In this mode, DTMF digits are removed from the audio stream (and the 'DTMF
Transport Type' parameter is automatically set to
Mute DTMF
).
Using NOTIFY messages according to
IETF Internet-Draft
draft-mahy-sipping-
signaled-digits-01
: DTMF digits are sent to the remote side using NOTIFY
messages. To enable this mode, define the following:
a.
Set the 'Declare RFC 2833 in SDP' parameter to
No
(RxDTMFOption = 0).
b.
Set the '1st Tx DTMF Option' parameter to
NOTIFY
(TxDTMFOption = 2).
Note:
In this mode, DTMF digits are removed from the audio stream (and the 'DTMF
Transport Type' parameter is automatically set to
Mute DTMF
).
Using RFC 2833 relay with Payload type negotiation:
DTMF digits are sent to the
remote side as part of the RTP stream according to RFC 2833. To enable this mode,
define the following:
a.
Set the 'Declare RFC 2833 in SDP' parameter to
Yes
(RxDTMFOption = 3).
b.
Set the '1st Tx DTMF Option' parameter to
RFC 2833
(TxDTMFOption = 4).
Note:
To set the RFC 2833 payload type with a value other than its default, use the
RFC2833PayloadType parameter. The device negotiates the RFC 2833 payload type
using local and remote SDP and sends packets using the payload type from the
received SDP. The device expects to receive RFC 2833 packets with the same
payload type as configured by this parameter. If the remote side doesn’t include
‘telephony-event’ in its SDP, the device sends DTMF digits in transparent mode (as
part of the voice stream).
Sending DTMF digits (in RTP packets) as part of the audio stream (DTMF Relay
is disabled):
This method is typically used with G.711 coders. With other low-bit rate
(LBR) coders, the quality of the DTMF digits is reduced. To enable this mode, define
the following:
a.
Set the 'Declare RFC 2833 in SDP' parameter to
No
(RxDTMFOption = 0).
b.
Set the '1st Tx DTMF Option' parameter to
Not Supported
(TxDTMFOption = 0).
c.
Set the ini file parameter, DTMFTransportType to 2 (i.e., transparent).
Summary of Contents for Media Pack MP-11x
Page 2: ......
Page 14: ...User s Manual 14 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 24: ...User s Manual 24 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 25: ...Part I Getting Started with Initial Connectivity...
Page 26: ......
Page 35: ...Part II Management Tools...
Page 36: ......
Page 38: ...User s Manual 38 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 86: ...User s Manual 86 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 94: ...User s Manual 94 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 100: ...User s Manual 100 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 108: ...User s Manual 108 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 109: ...Part III General System Settings...
Page 110: ......
Page 118: ...User s Manual 118 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 121: ...Part IV General VoIP Configuration...
Page 122: ......
Page 152: ...User s Manual 152 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 202: ...User s Manual 202 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 204: ...User s Manual 204 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 230: ...User s Manual 230 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 231: ...Part V Gateway Application...
Page 232: ......
Page 234: ...User s Manual 234 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 274: ...User s Manual 274 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 278: ...User s Manual 278 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 298: ...User s Manual 298 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 326: ...User s Manual 326 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 327: ...Part VI Stand Alone Survivability Application...
Page 328: ......
Page 336: ...User s Manual 336 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 358: ...User s Manual 358 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 361: ...Part VII Maintenance...
Page 362: ......
Page 368: ...User s Manual 368 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 406: ...User s Manual 406 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 409: ...Part VIII Status Performance Monitoring and Reporting...
Page 410: ......
Page 441: ...Part IX Diagnostics...
Page 442: ......
Page 456: ...User s Manual 456 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 458: ...User s Manual 458 Document LTRT 65432 MP 11x MP 124 This page is intentionally left blank...
Page 471: ...Part X Appendix...
Page 472: ......