[asterisk-users] Help on strange problem...

[Stuart Sheldon]

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Hey all,

I'm having problems with calls dropping after 15 - 20 seconds from a
particular provider. The are using a NexTone gateway. Here are the details:

Successful call:
INVITE			cseq 1	From NexTone
100 Trying		cseq 1	From Asterisk
100 Trying		cseq 1	From Asterisk
200 OK (G711U)		cseq 1	From Asterisk
ACK			cseq 1	From NexTone
INVITE (G711U)		cseq 2	From NexTone
100 Trying		cseq 2	From Asterisk
200 OK			cseq 2	From Asterisk
ACK			cseq 2	From NexTone
200 OK (711U)		cseq 1	From Asterisk
ACK			cseq 1	From NexTone

Call continues until one side hangs up...


Failed Call:
Call audio is fine and all seems well but after 15 to 20 sec the call
drops...

INVITE			cseq 1	From NexTone
100 Trying		cseq 1	From Asterisk
100 Trying		cseq 1	From Asterisk
200 OK (G711U)		cseq 1	From Asterisk
INVITE (G711U)		cseq 2	From NexTone
100 Trying		cseq 2	From Asterisk
491 Request Pending	cseq 2	From Asterisk
ACK			cseq 1	From NexTone
ACK			cseq 2	From NexTone
200 OK (G711U)		cseq 1	From Asterisk
ACK			cseq 1	From NexTone
200 OK (G711U)		cseq 1	From Asterisk
ACK			cseq 1	From NexTone
200 OK (G711U)		cseq 1	From Asterisk
ACK			cseq 1	From NexTone
200 OK (G711U)		cseq 1	From Asterisk
ACK			cseq 1	From NexTone
200 OK (G711U)		cseq 1	From Asterisk
ACK			cseq 1	From NexTone
200 OK (G711U)		cseq 1	From Asterisk
ACK			cseq 1	From NexTone
BYE			cseq 1	From NexTone
200 OK			cseq 1	From Asterisk

I see this in the console after the call disconnects:

WARNING[24417]: chan_sip.c:1938 retrans_pkt: Maximum retries exceeded on
transmission 1108498-3404158824-47362 at npx2-fmtca.iptelesis.net for seqno
1 (Critical Response)

This fails much more often then it is successful...

Anyone have a clue on this???


Stu Sheldon
Tech Committee Chairperson
S.C.A.L.E.



- --
Open up the window Let some air into this room I think I'm almost
chokin' From the smell of stale perfume And that cigarette you're
smoking 'Bout scared me half to death Open up the window, sucker
Let me catch my breath
          -- Three Dog Night - "Mama Told Me Not to Come - Lyrics"
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