User's Manual

66xx/67xx Router Users Guide 152
Enable Echo Cancellation: Enables echo cancellation.
Enable # to ASCIIL: When enabled “#” will be converted to “%23” in the SIP messages. When
disabled “#” will be sent.
Registration Expire Timeout*: Enter the registration expire timeout (in seconds).
Session Expire Time: The interval of dialog refreshing time (in seconds).
Min Session Expire Time: The minimum interval of dialog refreshing time (in seconds).
DSCP for SIP: Set the DSCP for SIP.
DSCP for RTP: Set the DSCP for RTP.
RFC2198 Payload Value (range 96~127): Enter the RFC2198 payload value. The valid range is
96 ~ 127.
Dtmf Relay Setting: Set DTMF transmit method, which can be following values:
SIP Info: Use SIP INFO message to transmit DTMF digits.
RFC2833: Use RTP packet to encapsulate DTMF events, as specified in RFC 2833.
InBand: DTMF events are mixed with user voice in RTP packet.
Caller ID Send Delay Time: The amount of time from call initiation to send the Caller ID.
Caller ID Message Type: Set the Caller ID message type to send — FSK, FSK_MDMF, or DTMF
FSK Modulation Mode: Depending on the options set in Caller ID Message Type, this drop down
sets the FSK (Frequency-Shift-Keying) modulation — Bell Core, V.23 (general), V.23 UK
version (sends out the FSK before the first ring).
SIP Transport Protocol: Select the transport protocol to use for SIP signaling. Note that the SIP
proxy and registrar need to support the protocol you select.
PRACK (100rel): SIP Provisional Response Acknowledgement (RFC 3262, Reliability of
Provisional Responses in the Session Initiation Protocol (SIP)).