Administrator’s Guide - SoundPoint IP / SoundStation® IPOptimization

 

Permitted

 

 

Attribute

Values

Default

Interpretation

 

 

 

 

tone.dtmf.stim.pac.offHookOnly

0, 1

0

Not currently used.

 

 

 

 

tone.dtmf.viaRtp

0, 1

1

If set to 1, encode DTMF in the

 

 

 

active RTP stream, otherwise,

 

 

 

DTMF may be encoded within the

 

 

 

signaling protocol only when the

 

 

 

protocol offers the option.

 

 

 

Note: tone.dtmf.chassis.masking

 

 

 

should be enabled when

 

 

 

tone.dtmf.viaRtp is disabled.

 

 

 

 

tone.dtmf.rfc2833Control

0, 1

1

If set to 1, the phone will indicate a

 

 

 

preference for encoding DTMF

 

 

 

through RFC 2833 format in its Ses-

 

 

 

sion Description Protocol (SDP)

 

 

 

offers by showing support for the

 

 

 

phone-event payload type; this does

 

 

 

not affect SDP answers, these will

 

 

 

always honor the DTMF format

 

 

 

present in the offer since the phone

 

 

 

has native support for RFC 2833.

 

 

 

 

tone.dtmf.rfc2833Payload

96-127

101

The phone-event payload encoding

 

 

 

in the dynamic range to be used in

 

 

 

SDP offers.

 

 

 

 

4.6.1.5.2 Chord Sets <chord_sets/>

Chord sets are the building blocks of sound effects that use synthesized rather than sampled audio (most call progress and ringer sound effects). A chord-set is a multi-fre- quency note with an optional on/off cadence. A chord-set can contain up to four fre- quency components generated simultaneously, each with its own level.

There are three blocks of chord sets:

callProg (used for call progress sound effect patterns)

ringer

misc (miscellaneous)

All three blocks use the same chord set specification format.

100

Copyright © 2006 Polycom, Inc.

Page 108
Image 108
Polycom 1725-11530-200 Rev A1 manual Chord Sets chordsets, All three blocks use the same chord set specification format