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Networking Guide for Cisco Unity Release 5.x (With Microsoft Exchange)
OL-13844-01
Chapter 1 Networking in Cisco Unity
Comparison of AMIS, Bridge, and VPIM Networking
Tab l e 1-16 Private Messages
AMIS Bridge VPIM
The AMIS protocol does not support
this functionality. Messages marked
private when they are sent are not
marked private when the recipient
retrieves them.
Supported. Messages marked private
when they are sent are marked private
when the recipient retrieves them.
Supported. Messages marked private
when they are sent are marked private
when the recipient retrieves them.
Tab l e 1-17 Secure Messages
AMIS Bridge VPIM
Incoming messages cannot be
encrypted before being delivered to
the local recipient.
With default settings: Outgoing
secure messages are undeliverable
and will generate an NDR.
When configured: Outgoing secure
messages are decrypted by the Voice
Connector and the message is no
longer secure.
With default settings: Incoming messages
will not be encrypted before being
delivered to the local recipient. Outgoing
secure messages are undeliverable and
will generate an NDR.
When configured: Incoming messages are
encrypted before being delivered to the
local recipient. Outgoing secure
messages are decrypted by the Voice
Connector and the message is no longer
secure.
With default settings: Incoming messages
will not be encrypted before being
delivered to the local recipient. Outgoing
secure messages are undeliverable and
will generate an NDR.
When configured: Incoming messages are
encrypted before being delivered to the
local recipient. Outgoing secure
messages are decrypted by the Voice
Connector and can be re-encrypted if the
receiving server is Cisco Unity with
Exchange and if secure messaging is
configured. During transport outside the
Cisco Unity system, messages are not
encrypted.
Tab l e 1-18 Simultaneous Analog Sessions for Message Delivery to or from Remote Voice Mail Systems
AMIS Bridge VPIM
Supported.
Limited to the voice mail port
availability on the AMIS bridgehead
server.
Ports available to place outgoing
AMIS calls can be configured in the
Cisco Unity Administrator (but not
per AMIS destination).
Supported.
Limited to Bridge server analog port
availability.
Maximum number of ports to deliver
simultaneously to any single node, and
the threshold to initiate and disconnect
additional calls, can be configured per
Bridge server.
N/A.