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ZIP2 User’s Manual
All Out-of-band signalling parameters are optional. Figure B-15 displays the Out-of-band
signalling settings section from a sample configuration file.
OOBTELEVENTS
Specifies the OOB signalling method. The ZIP2
supports the following DTMF signalling methods:
OOB_NONE – in-band DTMF signalling in the raw
audio stream
OOB_RFC2833 – out-of-band DTMF signalling
using encoded digits per RFC 2833
OOB_SIP_INFO – out-of-band DTMF signalling
using digits passed in SIP INFO packets per RFC
2976.
Default value is OOB_RFC2833.
3.35
SQUELCHDTMF
Specify whether or not to squelch DTMF audio
(avoid transmitting DTMF tones inband in the
audio stream).
YES – Suppress sending inband DTMF audio
NO – Do not suppress sending inband DTMF
audio
Default value is NO.
3.35
TELEVENTPAYLOAD
Specifies the dynamic payload type “codec”
designator to use for DTMF signalling. This is an
arbitrary number between 96-128 per RFC
1890-RTP payload spec. Can cause interoperability
problems with vendors that require it to exactly
match their dynamic payload number.
Default value is 101.
3.35
# TFTP config file template for ZIP 2's
ROMAVERSION 3.38
# Set current Application code version
############## SIP Configuration Parameters
SERVERIP 192.168.1.100
# SIP Server host name or address.
# Leave blank to search automatically
# via DNS SRV
SERVERPORT 5060
# SIP Server Port number
DOMAINNAME zultys.com
# Used as host part of SIP REGISTER AOR
SERVERREGISTER YES
# Register with SIP server
OOBTELEVENT OOB_RFC2833
TELEVENTPAYLOAD 101
DROPVOICE YES
SQUELCHDTMF NO
ABCDMODE TRANSITION
Figure B-15
Sample Configuration File – Out-of-band Signalling Settings
Parameter
Description
Equivalent
web
interface
parameter
Version
Introduced
Figure B-14
Out of Band Signalling Parameters (Continued)
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