I've just setup a new asterisk box (cvs HEAD) with a digium tdm411 and a couple computers with eyebeam. I have one small. I cannot call the eyebeam clients from the phone connected the fxs port. I can call the phone from the eyebeem clients. And, I get both the fxs phone and eyebeam clients to ring when a call comes in through the fxo port. I have been trying to get this straightened out for quite a while and have tried suggestions in the wikis and mailing lists but haven't had any luck so far. The output from the console is: -- Starting simple switch on 'Zap/1-1' -- Executing NoOp("Zap/1-1", ""call for: " 3000") in new stack -- Executing Dial("Zap/1-1", "SIP/3000|60|tr") in new stack -- Called 3000 Aug 25 10:16:13 NOTICE[4092]: chan_sip.c:1806 auto_congest: Auto-congesting SIP/3000-d838 -- SIP/3000-d838 is circuit-busy == Everyone is busy/congested at this time (1:0/1/0) -- Executing VoiceMail("Zap/1-1", "u3000") in new stack -- Playing '/var/spool/asterisk/voicemail/default/3000/unavail' (language 'en') -- Playing 'vm-intro' (language 'en') == Spawn extension (from-pots-internal, 3000, 3) exited non-zero on 'Zap/1-1' -- Executing Hangup("Zap/1-1", "") in new stack == Spawn extension (from-pots-internal, h, 1) exited non-zero on 'Zap/1-1' -- Hungup 'Zap/1-1' Aug 25 10:16:21 WARNING[4092]: chan_sip.c:1055 retrans_pkt: Maximum retries exceeded on call 2347bee118aaed483f9d34a60a35b569@192.168.1.30 for seqno 102 (Critical Request) Aug 25 10:16:25 WARNING[4092]: chan_sip.c:1055 retrans_pkt: Maximum retries exceeded on call 2347bee118aaed483f9d34a60a35b569@192.168.1.30 for seqno 102 (Non-critical Request) zapata.conf [channels] usecallerid=yes hidecallerid=no callwaiting=yes usecallingpres=yes callwaitingcallerid=yes threewaycalling=yes transfer=yes canpark=yes cancallforward=yes callreturn=yes rxgain=0.0 txgain=0.0 ;callgroup=1 ;pickupgroup=1 immediate=no busydetect=yes echocancel=yes ; You can set this to 32, 64, or 128, tweak to your needs. echocancelwhenbridged=yes echotraining=400 ; Asterisk trains to the beginning of the call, number is in milliseconds callerid=asreceived signalling=fxs_ks group=2 context=from-analog ; Points to the incoming context of your extensions.conf channel => 4 signalling=fxo_ks callerid="Paul Wolstenholme" 604.267.2556 group=1 context=from-pots-internal channel=>1 sip.conf [general] port=5060 ; Port to bind to (SIP is 5060) bindaddr=0.0.0.0 ; Address to bind to (all addresses on machine) context=from-sip-external ; Send unknown SIP callers to this context [3000] type=friend username=3000 secret=9876 host=dynamic defaultip=192.168.1.100 context=from-sip-internal mailbox=3000 nat=no invite=no canreinvite=no ; Leave this alone for now; see archives for details qualify=1000 ;dtmfmode=inband dtfmode=rfc2833 ; inband is not supported in compressed codecs like gsm, so we better set it to rfc2833 disallow=all allow=gsm extensions.conf [local-sip-extensions] exten => 3000,1,NoOp("call for: " ${EXTEN}) exten => 3000,2,Dial(SIP/3000|60,tr) exten => 3000,3,Voicemail(u3000) exten => 3000,102,Voicemail(b3000) exten => 3000,103,Hangup