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Parameter name
Default value
Description
MEDIA_ADDR_MODE
4
Specifies the preference of
SDP media group lines
[per RFC 4091, 4092 and
5888] and the SDP
answer / offer format.
Note:
IPv4 only or IPv6 only
phones ignores
MEDIA_ADDR_MODE.
Value operation, SDP offer
in Avaya and Non Avaya
environment:
• 4: IPv4 (Note 3)
• 6: IPv6 (Note 3)
• 46: Prefer IPv4 over
IPv6
• 64: Prefer IPv6 over
IPv4
Value operation, SDP
answer in Avaya
environment:
• 4: IPv4 (Note 1 and 3)
• 6: IPv6 (Note 1 and 3)
• 46: Follow the remote
preference
• 64: Follow the remote
preference
Value operation, SDP
answer in Non Avaya
environment:
• 4: IPv4 (Note 1 and 3)
• 6: IPv6 (Note 1 and 3)
• 46: Prefer IPv4 (if
available in SDP offer)
only if
MEDIA_NEG_PREFER
ENCE is set to local,
otherwise grants the
remote preference
• 64: Prefer IPv4 (if
available in SDP offer)
Table continues…
List of configuration parameters
April 2020
Installing and Administering Avaya J100 series IP Phones in an Open SIP
environment
387