NEC NEAX NDA-24349 User Manual
Page 266
Chapter 13 Voice Over IP (VoIP)
Page 13- 8
NEAX 2000 IPS
Request for Proposal (RFP) Reference Guide
NDA-24349, Issue 4
11. Maximum number of voice channels per IP-PAD card depends on the payload size as follows.
8IPLA/24IPLA
Maximum Voice Channels per IP-PAD Card (8IPLA/24IPLA)
Payload Size
G.711
G.729a
G.723.1
10 ms
20
20
-
20 ms
32
32
-
30
ms
32 32 24
40 ms
32
32
-
12. Following parameters can be assigned on a Location basis. The Location is a kind of group (similar
to Tenant in a PBX) that is defined for bandwidth management and parameter settings for LAN traffic
based on the location of IP terminals. Maximum 64 Location numbers can be assigned per system.
Options Per Location
Type of Codec selection list
Diffserve
Type of Service (ToS)
Setting Area/Country
Operation when over usable bandwidth
threshold.
PAD control pattern
IP-PAD Group number
Jitter buffer
Echo canceller-ON/OFF
Usable Bandwidth
13. When the IP adapter unit is attached with a D
term
Series E/Series i terminal, other optional adapters
(except for AD/DC adapter unit) cannot be attached with the D
term
Series E/Series i terminal.
14. Dynamic Host Configuration Protocol (DHCP) cannot be used to assign an IP address to an MP.
15. Login is restricted in following conditions.
When designating a non-existent station number.
("Unregistered" is displayed on the LCD.)
When designating a station number that is not assigned to Multiline Terminal.
("Illegal LEN" is displayed on the LCD.)
16. Logout should be allowed by a station class of service. If not allowed, reorder tone will be heard
and "Restrict" will be displayed on the LCD.
17. Intranet to support Quality of Service (QoS) is preferable to connect IP Stations, to reduce the
delay of connection and voice, and the inferior grade of voice quality.
18. IP Stations operate on 10 Mbps or 100 Mbps LAN based on IEEE 802. (100Mbps LAN is
recommended.)
19. IP Stations support Dynamic Host Configuration Protocol (DHCP). (External DHCP server is
required.)
20. Network-based DRS (external DRS) 3.0 is not supported.
21. Switching hub(s) are required.
22. Spanning Tree (IEEE 802.1d) function is not available.
23. LACP (Link Aggregation Control Protocol, IEEE 802.3ad) function is not available.