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You will need to use the sip_header function to read the address directly out of the sip header. See <a href="http://www.voip-info.org/wiki/view/Asterisk+func+sip_header" rel="ugc">http://www.voip-info.org/wiki/view/Asterisk+func+sip_header</a><br />
The example given on that page looks like it will do what you want.
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Look fwd to testing it...tx
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Say, Using this on hangup <br />
<a href="http://www.voip-info.org/wiki/view/Asterisk+variables" rel="ugc">http://www.voip-info.org/wiki/view/Asterisk+variables</a><br />
Below is my output.<br />
How do I get the callers IP?<br />
<br />
<br />
&nbsp;Executing [h@OutboundWS:1] NoOp(&quot;SIP/41.x.x.x-03bfd75<wbr />0&quot;, &quot;EXTEN : h&quot;) in new stack<br />
[2011-10-08 23:55:15] VERBOSE[14670] logger.c: &nbsp; &nbsp; -- Executing [h@OutboundWS:2] NoOp(&quot;SIP/41.x.x.x-03bfd75<wbr />0&quot;, &quot;SIPDOMAIN : 41.x.x.x&quot;) in new stack<br />
[2011-10-08 23:55:15] VERBOSE[14670] logger.c: &nbsp; &nbsp; -- Executing [h@OutboundWS:3] NoOp(&quot;SIP/41.x.x.x-03bfd75<wbr />0&quot;, &quot;SIPCALLID : b212484d2e3ca45d&quot;) in new stack<br />

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Say, Using this on hangup 
http://www.voip-info.org/wiki/view/Asterisk+variables
Below is my output.
How do I get the callers IP?


 Executing [h@OutboundWS:1] NoOp("SIP/41.x.x.x-03bfd750", "EXTEN : h") in new stack
[2011-10-08 23:55:15] VERBOSE[14670] logger.c:     -- Executing [h@OutboundWS:2] NoOp("SIP/41.x.x.x-03bfd750", "SIPDOMAIN : 41.x.x.x") in new stack
[2011-10-08 23:55:15] VERBOSE[14670] logger.c:     -- Executing [h@OutboundWS:3] NoOp("SIP/41.x.x.x-03bfd750", "SIPCALLID : b212484d2e3ca45d") in new stack


You will need to use the sip_header function to read the address directly out of the sip header. See http://www.voip-info.org/wiki/view/Asterisk+func+sip_header
The example given on that page looks like it will do what you want.

Asterisk noop callers IP required

Say, Using this on hangup 
http://www.voip-info.org/wiki/view/Asterisk+variables
Below is my output.
How do I get the callers IP?


 Executing [h@OutboundWS:1] NoOp(&quot;SIP/41.x.x.x-03bfd750&quot;, &quot;EXTEN : h&quot;) in new stack
[2011-10-08 23:55:15] VERBOSE[14670] logger.c:     -- Executing [h@OutboundWS:2] NoOp(&quot;SIP/41.x.x.x-03bfd750&quot;, &quot;SIPDOMAIN : 41.x.x.x&quot;) in new stack
[2011-10-08 23:55:15] VERBOSE[14670] logger.c:     -- Executing [h@OutboundWS:3] NoOp(&quot;SIP/41.x.x.x-03bfd750&quot;, &quot;SIPCALLID : b212484d2e3ca45d&quot;) in new stack


IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.

IP Telephony

Telecommunication occurs when the exchange of information between two or more entities (communication) includes the use of technology. Communication technology uses channels to transmit information (as electrical signals), either over a physical medium (such as signal cables), or in the form of electromagnetic waves. The word is often used in its plural form, telecommunications, because it involves many different technologies.

Telecommunications

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).