7
Catalyst 6500 Series 24-Port FXS Analog Interface Module Installation Note
78-10975-02
Features
Fax payload size Configures the size of the fax payload (fax data)
carried over real-time transport protocol (RTP). The
value can range between 20 and 48.
20
Non standard facilities
country code
Overrides the country code passed by the fax
machine with the value defined. Setting the value to
default (65535) results in the gateway passing the
country code values received from the fax machine
to the far end. If the value is not the default, then the
gateway will pass the configured value as the
country code to the far end. It will suppress the
actual country code passed by the fax machine.
Country code can be received by the gateway from
the far end through ISDN. For details about the
nonstandard facilities country code, refer to the
T.35 specification.
65535
Non standard facilities
vendor code
Overrides the vendor/provider code passed by the
fax machine with the value defined. Setting the
value to default (65535) results in the gateway
passing the vendor code values received from the
fax machine to the far end. If the value is not the
default, the gateway passes the configured value as
the vendor code to the far end. It will suppress the
actual vendor code passed by the fax machine. The
vendor code can be received by the gateway from
the far end through ISDN. For details about the
nonstandard facilities vendor code, refer to the T.35
specification.
65535
Fax/Modem Packet
Redundancy
Enables packet redundancy support for fax and
modem calls. Packet redundancy support results in
retransmission of packets in case of problems.
Enabling redundancy can have a negative impact on
performance.
Checkbox unchecked
V.21 Flag Sequence
Detection Count
Specifies the number of V.21 flag sequences that
need to be detected in order to determine that an
incoming fax tone is valid. Increase this value when
there are line disturbances that require the gateway
to wait for a longer period of time to confirm a fax
call.
4
Port Used for Voice
Calls
Optimizes the performance of voice calls. If this
parameter is enabled and the parameters for modem
and fax calls are disabled, the port is configured to
accept only voice calls. Enable this parameter only
if you are certain that a port will handle voice calls
only.
Checkbox checked
Table 2 Fax and Modem Transport Parameters (continued)
