Support
Center
 Debugging with zttool
Solution

Debugging with zttool

Introduction

zttool is a critical tool for debugging. This article describes some of the debugging information provided by zttool.

Information


Here is some very essential zttool debugging information that may help you
to decode specific events.  Basically all of the call event delimiters
can be seen on the zttool screen, here is the tutorial.  The analog card is
the Rx side, and zaptel is the Tx side, meaning that information being
transmitted by that item is the definition.

   IDLE      RING IN      ANSWER    FAR END HANG    OUTBOUND CALL

   A  0         0           1         1      0            1
Tx B  1         1           1         1      1            1
   C  0         0           1         1 to   0            1
   D  1         1           1         1      1            1

   A  0         0 0         0         1      0            0
Rx B  1         0 1         1         1      1            1
   C  0         0 0         0         1 to   0            0
   D  1         0 1         1         1      1            1

These are all of the states that you should see.

1) Idle - ABCD bits stay idle, bot 0101

2) Inbound Ring - the B and D bits on the Rx side (analog card) go from 1 to
0, and are 0 while the AC voltage is present.  0101 is there when there is
no AC voltage present, so you will should be able to "see" the ringing.
Answer mode should follow this.

3) Far End Hang - a 500ms hold of 1111 on the Rx side, and Asterisk (zaptel)
should respond by going back to the IDLE condition

4) Asterisk Hang - Tx should go from 1111 to 0101, that's it

5) Outbound call - Asterisk goes from 0101 to 1111, and nothing else should
happen on the Rx side.  Dial tone should be pulled.

Applies To

zttool

Keywords

zttool, debug, Zaptel





 Login [Lost Password] 
Email:
Password:
Remember Me:
 
 Search
 Article Options