Do you have iptables turned on with rules that restrict packets to the RTP ports? Try doing an iptables --flush then see if it works. If so, you'll need to open up the UDP ports that RTP is configured to use.
Normally Asterisk would open up the firewall by sending packets out those ports, but when both sides of the call live outside the firewall (iptables in this case) and they're both SIP you'll have this problem. See my previous posting for a more detailed explanation (or email me directly).
-brian
[EMAIL PROTECTED] wrote:
Hello
I Installed Asterisk on RedHat 9. I am currently try to configure minimum with
two softphone talking to each other over the LAN. I am using X-Lite softphones
from xten.com site. I defined 3 phones in sip.conf and also specifies in
extensions.conf file. I am able to ring other computer but there is no voice
exchange ( i can't hear any think except ring). Here is the portion of sip.conf
and extensions.conf.
Let me know if i missed something.
Thanks
Deepak
sip.conf [general] port = 5060 ; Port to bind to bindaddr = 0.0.0.0 ; Address to bind SIP channel to context = from-sip ; Default context for incoming calls ;srvlookup = yes ; Enable DNS SRV lookups on outbound calls ; Asterisk only uses the first host in SRV records ;pedantic = yes ; Enable slow, pedantic checking for Pingtel ; and multiline formatted headers for strict ; SIP compatibility ;tos=lowdelay ; IP QoS parameter, either keyword or value ; like tos=184 ;maxexpirey=3600 ; Max length of incoming registration we allow realm=asterisk ; Our global authentication realm ;defaultexpirey=120 ; Default length of incoming/outoing registration ;notifymimetype=text/plain ; Allow overriding of mime type in NOTIFY ;videosupport=yes ; Turn on support for SIP video
;disallow=all ; Disallow all codecs allow=all ; Allow codecs in order of preference ;allow=ulaw ; Allow codecs in order of preference ;allow=ilbc
..... [Phone1] type=friend host=dynamic defaultip=192.168.3.103 dtmfmode=rfc2833 context=from-sip callerid=" Win box " <1> [Phone2] type=friend host=dynamic defaultip=192.168.3.119 dtmfmode=rfc2833 context=from-sip callerid=" Deepak" <2> [Phone3] type=friend host=dynamic defaultip=192.168.3.106 dtmfmode=rfc2833 context=from-sip callerid=" Ravi " <3>
[extensions.conf] [from-sip] exten=>1,1,Dial(SIP/Phone1,20,tr) exten=>2,1,Dial(SIP/Phone2,20,tr) exten=>3,1,Dial(SIP/Phone3,20,tr)
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