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Failover Sequence
Address List from DNS, Priority, Result
P1 - First Priority Address
P2 - Second Priority Address
SIP IP
Preference
IP Mode
2009:1:1:1:1 -> 2.2.2.2 ->
2009:2:2:2:2
P1- 2009:1:1:1::1
P2 - 2.2.2.2, 2009:2:2:2::2
Result
: Phone will send the SIP messages to
2009:1:1:1::1 first.
IPv4
Dual
Mode
2009:1:1:1:1 -> 2009:2:2:2:2
->2.2.2.2
P1- 2009:1:1:1::1
P2 - 2.2.2.2, 2009:2:2:2::2
Result
: Phone will send the SIP messages to 1.1.1.1
first.
IPv6
Dual
Mode
1.1.1.1 -> 2.2.2.2
P1 - 1.1.1.1, 2009:1:1:1::1
P2 - 2.2.2.2, 2009:2:2:2::2
Result
: Phone will send the SIP messages to 1.1.1.1
first.
IPv4
or
IPv6
IPv4
Only
2009:1:1:1:1 ->
2009:2:2:2::2
P1 - 1.1.1.1, 2009:1:1:1::1
P2 - 2.2.2.2, 2009:2:2:2::2
Result
: Phone will send the SIP messages to
2009:1:1:1::1 first.
IPv4
or
IPv6
IPv6
Only
SDP IP Preference - ALTC helps peers in dual-mode negotiate RTP address family.
Before you begin
Access the phone administration web page. See
Access the Phone Web Interface, on page 104
.
Procedure
Step 1
Select
Voice
>
SIP
.
Step 2
In the
SIP Parameters
section, select
IPv4
or
IPv6
in the
SIP IP Preference
field.
For details, see
SDP IP Preference
field in the
table.
Step 3
In the
RTP Parameters
section, select
IPv4
or
IPv6
in the
SDP IP Preference
field.
For details, see
SDP IP Preference
in the
table.
Cisco IP Phone 8800 Series Multiplatform Phone Administration Guide for Release 11.3(1) and Later
359
Cisco IP Phone Installation
Control SIP and RTP Behaviour in Dual Mode
Содержание 8800 Series
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Страница 329: ...P A R T III Cisco IP Phone Installation Cisco IP Phone Installation on page 311 ...
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Страница 437: ...P A R T IV Troubleshooting Troubleshooting on page 419 Monitoring Phone Systems on page 429 Maintenance on page 439 ...
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