Network address translation <nat, Message waiting indicator <mwi, A-97 – Polycom SOUNDPOINT SIP 2.2.0 User Manual

Page 208: Network address translation

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Administrator’s Guide SoundPoint IP / SoundStation IP

A - 96

Message Waiting Indicator <mwi/>

In the following table, x is the registration number. IP 301, 320, 330, 430: x=1-2;

IP 501: x=1-3; IP 550: x=1-4; IP 600: x=1-6; IP 601: x=1-12;

IP 650: x=1-34; IP 4000: x=1.
This configuration attribute is defined as follows:

Network Address Translation <nat/>

These parameters define port and IP address changes used in NAT traversal.

The port changes will change the port used by the phone, while the IP entry

simply changes the IP advertised in the SIP signaling. This allows the use of

simple NAT devices that can redirect traffic, but do not allow for port

mapping. For example, port 5432 on the NAT device can be sent to port 5432

on an internal device, but not port 1234.

Attribute

Permitted Values

Default

Interpretation

msg.mwi.x.subscribe

ASCII encoded string containing
digits (the user part of a SIP
URL) or a string that constitutes
a valid SIP URL (6416 or
[email protected])

Null

If non-Null, the phone will send
a SUBSCRIBE request to this
contact after boot-up.

msg.mwi.x.callBackMo
de

contact or
registration or
disabled

“registration”

Configures message retrieval
and notification for the line.

If set to “contact”, a call will be
placed to the contact specified
in the callback attribute when
the user invokes message
retrieval.

If set to “registration”, a call will
be placed using this registration
to the contact registered (the
phone will call itself).

If set to “disabled”, message
retrieval and message
notification are disabled.

msg.mwi.x.callBack

ASCII encoded string containing
digits (the user part of a SIP
URL) or a string that constitutes
a valid SIP URL (6416 or
[email protected])

Null

Contact to call when retrieving
messages for this registration.

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