General Product Description
Sopho 2000IPS
Release 12.2, August 2006
NEC Philips Unified Solutions
UPD
42 of 259
© NEC Philips Unified Solutions, 2006. All right reserved.
Reproduction in whole or in part is prohibited without the written consent of the copyright owner.
2.8 The IP-PAD and VCT
To support the IP telephony capabilities a Packet Assemble/Disassemble (PAD) gateway
card is available. This card is used to convert the speech path of the IP network to the
legacy interfaces in the system (TDM based interfaces), or visa versa. Besides the
conversion function on 32IPLAA IP-PAD C card the system can provide compression
protocols via the adjacent 16VCTAA IP-PAD A card, a maximum of 2 VCT cards can be
applied per IP-PAD
.
So, the IP-PAD is required for the following connections/statuses:
Connections between IP Enabled Dterm telephones and legacy stations/trunks
Connections between IP Enabled Dterm telephones and IP trunks (H.323)
Connections between legacy stations/trunks and IP trunks (H.323)
Connections for CCIS networking via IP from/to legacy stations/trunks
While IP Enabled Dterm telephones are on hold (Consultation Hold, Call
Transfer, Music-on-Hold)
When any override service is activated (Executive Override)
3-/4-Party conference including IP Enabled Dterm telephones
The following table provides an overview of the bandwidth occupation in relation with
the different compression rates.
PAYLOAD
BANDWITH
G.711 /40ms (64k)
72 Kbps
G.711/10ms (64k)
96 Kbps
G.723.1/30ms (5.3K)
16 Kbps
G.723.1/30ms (6.3k)
17 Kbps
G.729a/10ms (8k)
40 Kbps
G.729a/40ms (8k)
16 Kbps
2.8.1 8 ports IP-PAD (including compression)
With release 8 a smaller granularity IP-PAD is introduced. This card has 8-channels with
on-board compression. Apart from that, it can be expanded by an optional 24-channel
daughter board.
This is done for two reasons:
-
Better fit for smaller configs/small amount of IP phones. So also more choice of
boards
-
Possibility to easily upgrade later
The following table shows the specifications of the 8 channel board (SPN-8IPLA) and the
24 channel daughter board (SPZ-24IPLA):
Function
Description
Remarks
Network interface
Ethernet- IEEE 802.3 (10BASE-T)- IEEE 802.3u
(100BASE-TX)- Auto Negotiation
100Mbps
recommended
Number of channels 8
Number of
Can be expanded by adding a Sub card on the Main card.