schenario
N°1 DELL Poweredge 2900 2x quadcore 2.6GHz - 8GB RAM - 4 x HDD 500GB Raid 1+0 only DB server 192.169.1.3 (vicidb)
N°1 DELL Poweredge 1950 2x dualcore 2.6Ghz - 4GB RAM - 2 x HDD 78GB Raid 1 Asterisk-Server/Web Sever 192.169.1.1 (vici1)
N°1 DELL Poweredge 1950 2x dualcore 2.6Ghz - 4GB RAM - 2 x HDD 78GB Raid 1 Asterisk-Server/Web Sever 192.169.1.2 (vici2)
Installation with ViciBox.x86_64-4.0.3.iso
vicidial version: 2.6-375a BUILD: 120831-1523
If work only server vici1 and vicidb 30 operator work fine.
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If work only server vici2 and vicidb 30 operator work fine.

If vici1 + vic2 + vicidb i have a problem.
operator connect with vici1 work fine when call place on vici1,
operator connect with vici2 work fine when call place on vici2, but if call arrive from vici1 operator don't work because call is whitout audio, but in the web page there is a "LIVE CALL".
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Trinx iax beetween server asterisk is ok,
from log of server vici2 i can see that:
part of log of vici2 192.169.1.2
-- Accepting AUTHENTICATED call from 192.169.1.1:
> requested format = g729,
> requested prefs = (g729|gsm|ulaw),
> actual format = ulaw,
> host prefs = (ulaw),
> priority = mine
[Feb 23 10:07:57] VERBOSE[8651] logger.c: [Feb 23 10:07:57] -- Executing [8600054@default:1] MeetMe("IAX2/vici1-9170", "8600054|F") in new stack
[Feb 23 10:07:57] VERBOSE[8652] logger.c: [Feb 23 10:07:57] == Parsing '/etc/asterisk/manager.conf': [Feb 23 10:07:57] VERBOSE[8652] logger.c: [Feb 23 10:07:57] Found
[Feb 23 10:07:57] VERBOSE[8652] logger.c: [Feb 23 10:07:57] == Manager 'sendcron' logged on from 127.0.0.1
[Feb 23 10:07:57] VERBOSE[8653] logger.c: [Feb 23 10:07:57] -- Executing [128600054@default:1] MeetMeAdmin("Local/128600054@default-4b8a,2", "8600054|m|1") in new stack
[Feb 23 10:07:57] VERBOSE[8653] logger.c: [Feb 23 10:07:57] -- Executing [128600054@default:2] Hangup("Local/128600054@default-4b8a,2", "") in new stack
[Feb 23 10:07:57] VERBOSE[8653] logger.c: [Feb 23 10:07:57] == Spawn extension (default, 128600054, 2) exited non-zero on 'Local/128600054@default-4b8a,2'
What is a problem? help me please, i don't know where looking for!
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Best regard
ps: sorry for my english