Troubleshooting guide

OmniTouch UC R3.0 – Troubleshooting Guide for IP Softphone
Copyright © 2005 Alcatel, All rights reserved
Edition 3 – Page 10
1.2.3 Initialization sequences with IP 4980 Softphone and 4980 Nomadic VoIP
Initialization sequences (1) between the different modules are indicated in the following figure:
Starting an audio flow (through a Make Call request from the 4980 Softphone client) is indicated by
sequences (2).
OmniPCX
V
oIP Gatewa
y
OTS
A
TAPI 4980 DLL UA
A
BERS
Login (phone number)
MAC address
Connect message
TFTP
(
MAC address
)
Download of lanpbx.cfg, bintscip, start_tscip = UA listening recover
UA establishment link (lots of UA messages )
Init. finished
CSTA make call
A
TAPI make call
Start_rtp (rtp src/rtp dest /codec / vad...)
Start of the
audio flow
RTP
(1)
(2)