Administration
A31003-S2030-M100-11-76A9, 01/2015
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OpenStage SIP V3R3 for OpenScape Voice, Administration Manual
administration.fm
System Settings
3.5.8.3
Media/SDP
OpenStage phones support IPv4/IPv6 media address negotiation in SDP using ANAT (Alterna-
tive Network Address Types). ANAT allows for for the expression of alternative network ad-
dresses (e. g., different IP versions) for a particular media stream.
When
Media negotation
is set to "ANAT", ANAT is supported; the phone will re-register with
the SIP server and advertise ANAT support in the SIP header. When set to "Single IP", ANAT
support is disabled.
Media IP mode
defines which IP version is to be used for voice transmission. With "IPv4", only
IPv4 is used; with "IPv6", only IPv6 is used; with "IPv4_IPv6", both IPv4 and IPv6 can be used,
but IPv4 is preferred; with "IPv6_IPv4", both IPv6 and IPv4 can be used, but IPv6 is preferred.
Administration via WBM
System > SIP interface
Administration via Local Phone
>
If SRTP is enabled, ANAT interworking is only possible if SDES is configured as the
key exchange protocol for SRTP (see Section 3.4.1.1, “General Configuration”).
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Admin
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System
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SIP Interface
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Media negotiation
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Media IP mode
SIP interface
Outbound proxy
Default OBP domain
SIP transport
UDP
;
Response timer (ms)
32000
NonCall trans. (ms)
Reg. backoff (seconds)
60
32000
Connectivity check timer (seconds)
0
Submit
Reset
Keep alive format
Media Negotiation
Single IP
Sequence
Media IP Mode
IPv4