user manual

When using RFC 2833, the payload type is specified using the following parameter element:
IPSET_DTMF
IPPARM_DTMF_RFC2833_PAYLOAD_TYP
and one of the following values:
• IP_USE_STANDARD_PAYLOADTYPE – (default payload type (101)
• any value in the range 96 to 127 – (dynamic payload type
4.16.2 Getting Notification of DTMF Detection
Once DTMF support has been configured (see Section 4.16.1, “Specifying DTMF Support”, on
page 238), the application can specify which DTMF modes will provide notification when DTMF
Table 14. Summary of DTMF Mode Settings and Behavior
IP_DTMF_TYPE_
RFC_2833
IP_DTMF_TYPE_
ALPHANUMERIC
IP_DTMF_TYPE_
INBAND
Transmit (Tx)
DTMF Mode
Receive (Rx)
DTMF Mode