[asterisk-r2] MFC/R2 protocol error on chan 1: Seize Timeout

[Petya Minovska]

Hello,

I have an Asterisk server and a multiplexer connected via E1 boards 
(TE133 Digium for the server and Lomif for the multiplexer). I have 
connected a phone to the FXS board of the multiplexer and I am trying to 
make a call to it. Through dahdi_tool I can see the rx and tx CAS bits 
and when I change them I see it.
Both rx CAS and tx CAS are in state 'idle', but when I try to make a 
call I see the following error in the CLI;

/* == Using SIP RTP CoS mark 5*//*
*//*    -- Executing [812 at demo:1] Dial("SIP/101-00000015", 
"DAHDI/1/812,,tT") in new stack*//*
*//*    -- Called DAHDI/1/812*//*
*//*[Feb  4 10:36:10] WARNING[32752]: chan_dahdi.c:4185 
dahdi_r2_write_log: Chan 1 - Seize Timeout Expired!*//*
*//*[Feb  4 10:36:10] ERROR[32752]: chan_dahdi.c:4188 
dahdi_r2_write_log: Chan 1 - Protocol error. Reason = Seize Timeout, R2 
State = Seize Transmitted, MF state = MF Engine Off, MF Group = Forward 
MF init, CAS = 0x08*//*
*//*DNIS = 812, ANI = 101, MF = 0x20*//*
*//*[Feb  4 10:36:10] ERROR[32752]: chan_dahdi.c:3973 
dahdi_r2_on_protocol_error: MFC/R2 protocol error on chan 1: Seize 
Timeout*//*
*//*    -- Hungup 'DAHDI/1-1'*//*
*//*  == Everyone is busy/congested at this time (1:0/0/1)*//*
*//*    -- Executing [812 at demo:2] NoOp("SIP/101-00000015", " DAN 
CHANUNAVAIL") in new stack*//*
*//*    -- Executing [812 at demo:3] Hangup("SIP/101-00000015", "") in new 
stack*//*
*//*  == Spawn extension (demo, 812, 3) exited non-zero on 
'SIP/101-00000015'*/

Would you please tell me what can help me to solve the problem. Is there 
a problem with the signalling bits, configured in the multiplexer or the 
configuration in the Asterisk.

Thanks in advance,
Petya

-- 
Petya Minovska



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