Table 2-6 Codec Methods Supported By Gateways - Tadiran Telecom TGW4 SERIES User Configuration Manual

User Configuration Manual
Name
*
Hook-flash handle
*
DTMF
transmission
method
*
RFC 2833 payload
type
*
DTMF tone
duration
*
DTMF interdigit
pause
*
Min. DTMF
detection duration
*
DTMF detection
duration increment
against talk-off
Codec Methods Supported by Gateways
Table 2-6
Codec
G729A
PCMU/PCMA
18
Description
The gateways provide the following processing modes after detecting hookflash from
subscriber terminals:
 Internal: the hookflash event will be handled internally;
 Server(RFC 2833): transmitting the hookflash to platform with RFC 2833;
 Server (SIP INFO): transmitting the flash-off to platform with SIP INFO.
For Aeonix  Select Internal
Transmission modes of DTMF signal supported by the gateways include RFC 2833,
Audio and SIP INFO. The factory default value is RFC 2833.
RFC 2833: separate DTMF signal from sessions and transmit it to the platform

through RTP data package in the format of RFC2833
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
RFC2833+SIP INFO: sending DTMF signals simultaneously via RFC 2833 and

SIP INFO
For Aeonix  Select
RFC 2833
For Aeonix US ALARMS  Select Audio
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 TGW (eg. platform).
For Aeonix  Use default value 101
This parameter sets the on time (in ms) of DTMF signal sent from FXO (TGW8-2G)
port. The default value is 100 ms. The range is 50 - 150 ms.
For Aeonix TGW8-2G 
For Aeonix  leave the default 100 ms
For Aeonix US ALARMS  Select 50
This parameter sets the off time (ms) of DTMF signal sent from port. The default
value is 100 ms. The range is 50 - 150 ms.
For Aeonix US ALARMS  Select 50
Minimum duration time of effective DTMF signal. Its effective range is 32 - 96 ms. The
default value is 48 ms. The greater the value set, the more stringent the detection is.
For Aeonix US ALARMS  Select 35
An actual detection threshold is determined jointly by using the Min. DTMF
detection duration and this parameter.
Actual detection threshold = Min. DTMF detection duration + DTMF detection
duration increment against talk-off.
The valid values are 16, 32, and 48 in ms. Increasing the value can prevent false
detection of DTMF signals.
For Aeonix US ALARMS  Select 16
Bit Rate (Kbit/s)
8
64
set in the range of 80-150 ms
Time Intervals of RTP Package Sending (ms)
10/20/30/40
10/20/30/40
TGW4/8 Gateway Series for Aeonix
Tadiran Telecom (TTL) L.P.