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D Capacities and Performance
Administration for Network Connectivity
CID: 77730 555-233-504 — Issue 1 — April 2000
408
The following table gives the number of sockets (connections) needed for IP
softphones and H.323 trunks.
As a worst-case example of these limits, assume 1000 active H.323 endpoints, each
requiring 3 C-LAN connections and G.723 codec processing. This configuration
would require 3x1000/508 = 6 C-LANS and 1000/22 = 46 MedPros.
For C-LAN Number of Sockets Required
Number of sockets per
road-warrior application
(The H.323 sockets are held up
while registered if the endpoint is
administered as a Permanent user or
while the call is active if administered
as an As Needed user
)
=
3 (1 DCP + 2 H.323)
2 (1 DCP + 1 H.323 with tunneling)
Number of sockets per
telecommuter application
=
1 (while registered)
Number of sockets per Native
Mode station
=
1 per call with tunneling
2 per call without tunneling
Number of sockets per H.323 Tie
trunk
(the numbers depend on whether
signaling groups are shared by trunks
and whether tunneling is used
)
=
sharing & tunneling: 1 /sig grp (default)
sharing, no tunneling: 1 /sig grp + 1/call
no sharing, tunneling: 1 /call
no sharing, no tunneling: 2 /call
Number of sockets per H.323
DID trunk
=
2 (while on call)