User guide

Setting Up the Polycom VVX 1500 C Phone
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Digital Picture Frame
A slide show of multiple personal images stored on a USB flash drive can be
displayed on the Polycom VVX 1500 C phone during the idle mode. The
supported formats include JPEG, BMP, and PNG. The maximum image size is
9999x9999. A maximum of 1000 images can be displayed and these must be
stored in a directory of the USB flash drive that you create.
Configuration changes can be performed centrally at the provisioning server.
For detailed information on configuration file settings, refer to <feature/> on
page A-4 and <up/> on page A-8.
Server Redundancy
Server redundancy is often required in VoIP deployments to ensure continuity
of phone service for events where the call server needs to be taken offline for
maintenance, the server fails, or the connection between the phone and the
server fails.
For more information, refer to “Technical Bulletin 5844: SIP Server Fallback
Enhancements on Polycom VVX 1500 C Phones” at
http://www.polycom.com/support/voice/soundpoint_ip/VoIP_Technical
_Bulletins_pub.html .
Configuration changes can be performed centrally at the provisioning server.
For information on configuration file settings, refer to <dns/> on page A-5 and
<reg/> on page A-6.
Note
Although 9999x9999 images are supported, progressive/multiscan JPEG images
are not supported at this time no matter their resolution.
Note
Your SIP server provider should be consulted for recommended methods of
configuring phones and servers for fail-over configuration. Static DNS cache should
only be used when you cannot install the correct entries into the DNS server.
The use of the static DNS cache is required when connecting into a Cisco Unified
Communications Manager system. This is because Cisco Unified Communications
Manager does not support simultaneous registrations from a single device to
multiple subscribers in the Cisco Unified Communications Manager cluster. The
recommended DNS cache configuration would list two subscriber IP addresses,
then an SRST reference (if one is present). This causes the Polycom VVX 1500 C
phone to attempt registration to a single subscriber based on the order of the IP
Addresses listed in the DNS cache. If the first subscriber in the list is down, the
Polycom VVX 1500 C will try the second subscriber, and then third. If a subscriber
comes back online, the Polycom VVX 1500 C will attempt to re-register to that
subscriber.