<html><head><style type='text/css'>body { font-family: 'Times New Roman'; font-size: 12pt; color: #000000}</style></head><body>Note also that if you point to the DNS name rather than the IP address of the asterisk server on the phones trying to register, you can set NAT=NO on the asterisk side and the sip FIXUP command on the PIX will handle everything correctly making this workaround unnecessary<br><br><br>----- Original Message -----<br>From: "Ravichandran Rajagopal" <ravichandran.rajagopal@gmail.com><br>To: asterisk-users@lists.digium.com<br>Sent: Friday, February 8, 2008 8:54:23 PM (GMT-0800) America/Los_Angeles<br>Subject: [asterisk-users] oneway audio with asterisk behind cisco pix 506<br><br>
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<p class="MsoNormal">Hi,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I have the Cisco PIX 506 firewall right in front of the
asterisk and I am getting a one-way audio. I need your help/guidance to resolve
this problem. I have the “fixups” disabled for SIP in the Cisco PIX
506. Any help rendered by you in this subject is greatly appreciated. I have
been breaking my head trying to resolve this problem for more than one month. I
have included the sip.conf and the extensions.conf below. </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> [SIP.conf]</p>
<p class="MsoNormal">; SIP Configuration example for Asterisk</p>
<p class="MsoNormal">[general]</p>
<p class="MsoNormal">context=incoming</p>
<p class="MsoNormal">allowoverlap=no</p>
<p class="MsoNormal">bindport=5060</p>
<p class="MsoNormal">bindaddr=0.0.0.0</p>
<p class="MsoNormal">localnet=192.168.5.0/255.255.255.0</p>
<p class="MsoNormal">externip=a.b.ccc.dd</p>
<p class="MsoNormal">srvlookup=yes</p>
<p class="MsoNormal">allow=ulaw</p>
<p class="MsoNormal">allow=alaw</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">[incoming]</p>
<p class="MsoNormal">type=peer</p>
<p class="MsoNormal">nat=no</p>
<p class="MsoNormal">canreinvite=no</p>
<p class="MsoNormal">host=xx.y.z.aaa</p>
<p class="MsoNormal">qualify=yes</p>
<p class="MsoNormal">dtmfmode=rfc2833</p>
<p class="MsoNormal">context=default</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">[extensions.conf]</p>
<p class="MsoNormal">[general]</p>
<p class="MsoNormal">static=yes</p>
<p class="MsoNormal">writeprotect=yes</p>
<p class="MsoNormal">clearglobalvars=no</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">[default]</p>
<p class="MsoNormal">include => customer</p>
<p class="MsoNormal">exten => h,1,Hangup</p>
<p class="MsoNormal">exten => i,1,Congestion</p>
<p class="MsoNormal">exten => i,2,Hangup</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">[agnosco]</p>
<p class="MsoNormal">include => local-extensions</p>
<p class="MsoNormal">include => customer_ivr</p>
<p class="MsoNormal">include => incoming</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">[customer_ivr]</p>
<p class="MsoNormal">include => local-extensions</p>
<p class="MsoNormal">exten => s,1,Answer</p>
<p class="MsoNormal">exten => s,n,Background(agnosco_intro)</p>
<p class="MsoNormal">exten => s,n,WaitExten</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">;Dial said extensions</p>
<p class="MsoNormal">exten => 5,1,Dial(SIP/4028805362@incoming,30)</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">[incoming]</p>
<p class="MsoNormal">exten => 4025901000,1,Goto(1000,1)</p>
<p class="MsoNormal">exten => 1000,1,Goto(customer_ivr,s,1)</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Thanks</p>
<p class="MsoNormal">sunMoonstar.</p>
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