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DEFINITY Switch Connectivity
7
Administration for Network Connectivity
555-233-504 — Issue 1 — April 2000 CID: 77730
1 Networking Overview
For IP Trunk connections, the voice data is sent over IP facilities as RTP datagrams
using the IP Interface assembly (TN802 or TN802B) — each packet can potentially
take a different route through the network. The call and DCS signaling data are sent
as datagram packets over an IP network using the C-LAN interface. The R7 type of IP
trunk (IP Interface operating in ip trunk mode) can also use tie-trunk PVC facilities
for the DCS signaling.
Release 8 Hardware Requirements
For the three DEFINITY ECS switch models — csi, si, and r — Release 8 IP trunking (H.323) and IP Softphone
connections require at least one IP Interface (TN802B) circuit pack and at least one C-LAN (TN799B) circuit
pack. DEFINITY One requires only the IP Interface circuit pack.
IP Interface The IP Interface assembly (J58890MA-1 L30) is a 3-slot wide TN802B circuit pack
that provides voice processing over IP connections. The IP Interface assembly
contains an NT processor, which is automatically administered by the DEFINITY
software. The TN802B can be administered to operate in medpro mode for H.323
trunks and IP softphones, or in ip trunk mode for R7-type IP Trunk connections.
C-LAN The C-LAN circuit pack, TN799B, provides call setup, TSCs, QSIG, and DCS
signaling over IP connections.
Note: The TN799B must be used to handle call signaling for the TN802B in
MedPro mode. However, the previous version of C-LAN (TN799) can be
used for call signaling with the TN802 or the TN802B operating in IP
Trunk mode. The TN799 can also be used for DCS signaling connections
on a switch that is using the TN802B in MedPro mode, as long as there
are TN799Bs to handle the call signaling for the TN802B.
Hardware Requirements for Upgrades from Pre-R7 Switches
DEFINITY release 7 introduced several hardware changes that are also required for release 8. This section
summarizes the hardware changes needed for pre-R7 switches upgrading to R8 for each switch model and each
type of non-H.323 connectivity.
R8r model The following table shows the hardware required for an upgrade to an R8r.
Connection Type Hardware Required
BX.25 (Existing
systems only)
PGATE (TN577)
TCP/IP
(ethernet and ppp)
C-LAN (TN799B)
ISDN-PRI No hardware changes required