[Asterisk-Users] SIP phones disconnect frequently
Udo Schacht-Wiegand
Udo at ComLink.org
Mon Nov 22 16:42:35 MST 2004
Hello all,
I'm new to the list, but use VoIP and * for a little while now.
Running Asterisk 1.0.2 on debian linux I'm facing the following problem:
I've got two Fritz!Box Fon Adapters (kind of ATA's) with two hardware phone
connectors each. So I'm trying to set up a PBX with four internal (SIP)
phones.
One box has fon1+2, the other fon3+4.
When I start up *, everything looks (and works) fine:
fon4/fon4 192.168.178.254 D 255.255.255.255 5060 OK
(12 ms)
fon3/fon3 192.168.178.254 D 255.255.255.255 5060 OK
(12 ms)
fon2/fon2 192.168.178.1 D 255.255.255.255 5060 OK
(12 ms)
fon1/fon1 192.168.178.1 D 255.255.255.255 5060 OK
(13 ms)
But after a while (5-10 minutes), one of the boxes 'disconnects'
spontaneously:
fon4/fon4 192.168.178.254 D N 255.255.255.255 5060 OK
(12 ms)
fon3/fon3 192.168.178.254 D N 255.255.255.255 5060 OK
(12 ms)
fon2/fon2 (Unspecified) D N 255.255.255.255 0
UNKNOWN
fon1/fon1 (Unspecified) D N 255.255.255.255 0
UNKNOWN
In this situation, I cannot make calls to fon1+2. I can, however, make calls
_from_ fon1+2, to the other internal phones as well as to outside line.
Then, after a few minutes again, the phones reconnect themselves:
-- Registered SIP 'fon2' at 192.168.178.1 port 5060 expires 1200
-- Registered SIP 'fon1' at 192.168.178.1 port 5060 expires 1200
The same can happen do the other two phones (3+4).
I've tried lots of different things: nat=yes/no, qualify=yes/no etc. I've
also
switched off one of each phones, to have unique IP #s. But nothing helped.
Any ideas?
Udo
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