Polycom CX5100 Administrator's Guide

Configuration Parameters
Polycom, Inc. 69
sec.srtp.key.lifetime
1
0, positive integer
minimum 1024 or
power of 2 notation
Null
The lifetime of the master key used for the cryptographic parameter in SDP. The value specified is the number of
SRTP packets. If 0, the master key lifetime is not set. If set to a valid value (at least 1024, or a power such as 2^10),
the master key lifetime is set. When the lifetime is set, a re-invite with a new key is sent when the number or SRTP
packets sent for an outgoing call exceeds half the value of the master key lifetime. Note: Setting this parameter to a
non-zero value may affect the performance of the system.
sec.srtp.mki.enabled
1
0 or 1 Lync = 1
Generic = 0
If enabled, the system sends two encrypted attributes in the SDP, one with MKI and one without MKI. If disabled, the
system sends only one encrypted attributed without MKI.
sec.srtp.mki.startSessionAtOne 0 or 1 0
If set to 1, use an MKI value of 1 at the start of an SDP session. If set to 0, the MKI value increments for each new
crypto key.
sec.srtp.offer
1
0 or 1 0
If 1, the system includes a secure media stream description along with the usual non-secure media description in the
SDP of a SIP INVITE. This parameters applies to the system initiating (offering) a call. If 0, no secure media stream
is included in SDP of a SIP invite.
sec.srtp.offer.HMAC_SHA1_32
1
0 or 1 0
If 1, a crypto line with the AES_CM_128_HMAC_SHA1_32 crypto-suite is included in offered SDP. If 0, the crypto line
is not included.
sec.srtp.offer.HMAC_SHA1_80
1
0 or 1 1
If 1, a crypto line with the AES_CM_128_HMAC_SHA1_80 crypto-suite is included in offered SDP. If 0, the crypto line
is not included.
sec.srtp.padRtpToFourByteAlignment
1
0 or 1 0
Packet padding may be required when sending or receiving video from other video products. If 1, RTP packet
padding is needed. If 0, no packet padding is needed.
sec.srtp.require
1
0 or 1 0
If 0, secure media streams are not required. If 1, the system is only allowed to use secure media streams. Any
offered SIP INVITEs must include a secure media description in the SDP or the call is rejected. For outgoing calls,
only a secure media stream description is included in the SDP of the SIP INVITE, meaning that the non-secure
media description is not included. If this parameter set to 1, sec.srtp.offer is also set to 1, regardless of the
value in the configuration file.
sec.srtp.requireMatchingTag
1
0 or 1 1
If 0, the tag values in the crypto parameter in an SDP answer are ignored. If 1, the tag values must match.
sec.srtp.sessionParams.noAuth.offer
1
0 or 1 0
SRTP Parameters (continued)
Parameter Permitted values Defaults

Polycom CX5100 Specifications

General

Product type	Group video conferencing system
Product color	Black
Number of persons	- person(s)
Megapixel	2 MP
Sensor type	-
Image sensor size	- \
Supported video modes	1080p
Supported graphics resolutions	352 x 288, 640 x 480 (VGA), 1056 x 144, 1280 x 720 (HD 720), 1920 x 1080 (HD 1080)
Frequency range	160 - 22000 Hz
Storage temperature (T-T)	-40 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	15 - 85 %
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (typical)	110 W
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Ethernet LAN (RJ-45) ports	1
Ethernet LAN	Yes
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Harmonized System (HS) code	85176990

Weight and Dimensions

Depth	325 mm
Width	369 mm
Height	348 mm
Weight	2300 g
Package depth	430 mm
Package width	520 mm
Package weight	9070 g