Chapter 13 Voice Over IP (VoIP)
UNIVERGE NEAX 2000 IPS Request for Proposal (RFP) Reference Guide Page 13- 19
Issue 6
H.323 Features
The following service features are available when connecting with H.323 terminal (NEC product). For
other vender products, confirmation test is required.
H.323 Features
Call Forwarding-All Calls Speed Calling-Station
Call Forwarding-Don’t Answer Bearer Service
Call Forwarding-Busy Line Tandem Switching of TIE Trunks-2/4-Wire
Split Call Forwarding The Line Connection with PAD Control
Call Transfer-All Calls Outgoing Trunk Busy Announcement
Hotline Brokerage Hot Line-Outside
Do not Disturb-Dterm Least Cost Routing-3/6-Digit
Calling/Called Number Display LCR-Time of Day Routing
Digital Display-Trunk Attendant Manual Override
Speed Calling-System Echo Canceller Control
Service Conditions for H.323
1. The data network used for H.323 must be a corporate Intranet.
2. Gatekeeper is required for H.323 network.
3. IP trunk cards must be connected with a corporate Intranet via a router.
4. CCIS feature key FD is required.
5. Maximum number of nodes in the network depends on the capability of the Gatekeeper.
6. Maximum one IP trunk card can be accommodated per PIM and maximum eight IP trunk cards per
system.
7. Maximum voice channels per IP trunk card depends on the payload period as follows (payload
period can be assigned in system programming):
Maximum Voice Channels per IP Trunk
Payload Period G.729a G.711 G.723.1
20 ms 6 5 –
30 ms 8 7 8
40 ms 12 10 –
Note: Maximum 96 channels can be provided per system
8. The same IP trunk card cannot be shared with CCIS network via IP and H.323.
9. Tone signals to an extension are provided by the system.
10. When a LAN cable is unplugged from the IP trunk card, the associated calls are disconnected.
11. When connected with the system by other manufacturer, a pre-connection test is required.
12. DTMF Relay is supported.