Cisco SPA1112 Provisioning Manual page 88

Voice Parameters
<DTMF_Relay_MIME_Type>
<Hook_Flash_MIME_Type>
<Remove_Last_Reg>
<Use_Compact_Header>
<Escape_Display_Name>
<RFC_2543_Call_Hold>
<Mark_all_AVT_Packets>
Provisioning Guide for Cisco SPA100 and SPA200 Series Analog Telephone Adapters
The MIME Type used in a SIP INFO message to signal a DTMF
event.
Default setting: application/dtmf-relay.
The MIME Type used in a SIP INFO message to signal a hook
flash event.
Default setting: application/hook-flash
Determines whether or not the ATA removes the last
registration before submitting a new one, if the value is
different. Select yes to remove the last registration, or select
no to omit this step.
Default setting: no
Determines whether or not the ATA uses compact SIP
headers in outbound SIP messages. Select yes or no from the
drop-down list. Select yes to use compact SIP headers in
outbound SIP messages. Select no to use normal SIP
headers. If inbound SIP requests contain compact headers,
the ATA reuses the same compact headers when generating
the response regardless the settings of the Use Compact
Header parameter. If inbound SIP requests contain normal
headers, the ATA substitutes those headers with compact
headers (if defined by RFC 261) if Use Compact Header
parameter is set to yes.
Default setting: no
Determines whether or not the Display Name is private. Select
yes if you want the ATA to enclose the string (configured in the
Display Name) in a pair of double quotes for outbound SIP
messages. If the display name includes " or \, these will be
escaped to \" and \\ within the double quotes. Otherwise,
select no.
Default setting: no
Configures the type of call hold: a:sendonly or 0.0.0.0. Do not
use the 0.0.0.0 syntax in a HOLD SDP; use the a:sendonly
syntax.
Default setting: no
Select yes if you want all AVT tone packets (encoded for
redundancy) to have the marker bit set for each DTMF event.
Select no to have the marker bit set only for the first packet.
Default setting: yes
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