Polycom HDX 4500 - Page 15

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During an H.323 call the network connection was removed and reconnected after a
specific time:
The normal 5 seconds test could not be checked as the calls dropped immediately,
this is very unusual after such a short period, as calls with other manufacturers‘
products typically reconnect after up to a 30 seconds network
disconnection/reconnection.
Time to Connect
H.323
All speeds
Approx. 3 seconds
Connectivity with Other Machines (models listed with comments)
H.323
Successful connections were made in each direction with the following CODECs,
where the systems supported H.239, presentation material was also shared.
C
o
n
n
e
c
t
C
L
P
o
H
In calls between the HDX4500 and Tandberg Edge 95 low resolution CIF was
transmitted by the Tandberg and SIF was transmitted by the HDX4500.
In calls between the HDX4500 and Tandberg 6000 MXP the HDX4500 transmitted
4CIF.
CODEC
Model and Software
Version
Call
Bandwidth
Resolution
Transmitted by
the HDX 4500
Resolution
Received by
the HDX 4500
Polycom PVX
S/W 8.0
1.5 Mbit/s
352 x 288
320 x 240
Polycom® VSX7000
S/W 9.0.5.1
2 Mbit/s
352 x 288
352 x 288
Tandberg Edge 95
S/W F9.0 PAL
2 Mbit/s
352 x 240
352 x 288
Tandberg 6000 MXP
S/W F9.0 PAL
2 Mbit/s
704 x 576
720p
Tandberg C40
S/W TC4.0.1
2 Mbit/s
1080p
720p
Tandberg C60
S/W TC3.1.1
2 Mbit/s
1080p
720p
Polycom HDX 9002
S/W 2.6.0
2 Mbit/s
720p
720p
Lifesize Team
S/W 4.7.10
2 Mbit/s
720p
720p
Lifesize Room 200
S/W 4.7.0
2 Mbit/s
720p
720p