Avaya 9600 Series Installing And Administering page 210

List of configuration parameters
Parameter name
MAX_TRUSTCERTS
MEDIA_ADDR_MODE
MEDIA_NEG_PREFERENCE
MEDIA_PRESERVATION
January 2020 Installing and Administering Avaya 9601/9608/9611G/9621G/9641G/9641GS IP
Default
value
10
4
0
1
Deskphones SIP
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Description
Specifies the maximum number of
trusted certificates files defined by
this parameter that can be
downloaded to the phone.
MAX_TRUSTCERTS enforces the
number of certificates. Valid values
are from 1 to 10.
Specifies the IP address of the
endpoint when both IPv4 and IPv6
addresses are provided. This
parameter is used for SIP signalling.
Value operation:
• 4: IPv4
• 6: IPv6
• 46: Prefer IPv4 over IPv6
• 64: Prefer IPv6 over IPv4
Specifies the address family
preference used by a dual mode
answer in non-Avaya environment.
This parameter is not applicable for
single mode phones.
Value operation:
• 0: Remote or offerer's preference
• 1: Local
Supports media preservation when
ENABLE_IPOFFICE is set to 2.
Value operation:
• 0: Phone tries to preserve a call
for a duration specified by
PRESERVED_CALL_DURATION
settings parameter.
• 1: Phone does not preserve a call.
As soon as the phone detects link
failure to IP Office, the phone
drops a call and makes re-
registration attempt.
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