Tadiran Telecom Aeonix TGW SIP-PRI Series User Manual page 27

TGWxE1 G a te w a y S e rie s U s e r M a n u a l
Figure 5-3 System Configuration Interface
Table 5-2 System Configuration Parameters
Name
Codec
DTMF method
2833 payload type
DTMF on-time
DTMF off-time
DTMF detection
threshold
Table 5-3 Codec Methods Supported by Gateway
Codec Supported
iLBC
GSM
G729A
G723
PCMU/PCMA
Ta d ira n Te le c o m
Description
Codecs methods supported by the gateways include G729A/20, G723/30, PCMU/20, PCMA/20,
iLBC/30 and GSM/20 (as shown in table 2-5). This parameter must be set due to no default
value.
Several encoding methods can configure in this item at the same time, separated with "," in the
middle; the gateways will negotiate with the platform in the order from front to back when
configuring the codec methods
Transmission modes of DTMF signal supported by the gateways include Audio, RFC 2833 and
SIP INFO. The default value is Audio.
Audio: DTMF signal is transmitted to the platform with sessions;

SIP INFO: Separate DTMF signal from sessions and transmit it to the platform in the form

of SIP INFO messages;
RFC 2833: Separate DTMF signal from sessions and transmit it to the platform through

RTP data package in the format of RFC2833.
RFC 2833&SIP INFO: DTMF signal is transmitted simultaneously via RFC 2833 and SIP

INFO.
Used with RFC 2833 in the DTMF transmission modes. The default value of 2833 payload type
is 101. The effective range available: 96-127. This parameter should match the setting of
far-end device (e.g. platform).
This parameter sets the on time (in ms) of DTMF signal sent from FXO port. The default value
is 100 ms. Generally, the duration time should be set in the range of 80-150 ms.
This parameter sets the off time (ms) of DTMF signal sent from FXO port. The default value is
100 ms. Generally, the interval time should be set in the range of 80-150 ms.
Minimum duration time of effective DTMF signal. Its effective range is 32-96 ms and the
default value is 48 ms. The greater the value is set, the more stringent the detection is.
Bit Rate (Kbit/s)
13.3/15.2
13
8
5.3/6.3
64
Time Intervals of RTP Package Sending (ms)
20/30
20
10/20/30/40
30/60
10/20/30/40
5 -5