H.323 is a recommendation from the ITU Telecommunication Standardization Sector (ITU-T) that defines the protocols to provide audio-visual communication sessions on any packet network.
Questions tagged [h.323]
42 questions
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Associate Ext. Number with IP addr on H.323 voip call
I simply need to associate an extension number to an ip-address on an H.225 message.
I have already recording RTP payloads, converting, mixing, everything but today, my extensions need to be ip-fixed .
All i need is the ext. number.
C/C++ code is…
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How to generate H323 (Including H225 & H245) protocol packets?
I'm trying to write a simple DPI (Deep Packet Inspection) tool. In my current phase, I need to develop a H.323 protocol detector. To aim this goal I need a H.225 / H.245 packet generator. I seems that almost all tool use SIP and RTP & RTCP protocol.…
Ebrahim Ghasemi
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Knowing the type of VoIP application carried by H.323
I know that H.323 can be used for VoIP applications such as T.38 (fax over IP). Are there any fields within the H.323 packets that indicate the type of VoIP applications carried? Something similar to the SIP messages where we can find the string…
Rayne
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Decoding H.245 Requests.
Although I have lots to say about whoever invented this system *@%... I'll keep it short.
I am debugging a simple ALG that is trying to open ports and substitute IP's when needed in the H323/H245 flow.
I am trying to understand the meaning of the…
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Integrate GNU Gatekeeper with Freeswitch..?
I try to make h323 calls using opal & mod_h323 on free-switch but calls not happen ?
So i am trying to use external gatekeeper to calls h323 but i want route calls through free-switch ?
please any buddy guide how can establish the h323 calls using…
Vishal
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How does one capture H.323 voice traffic on a VOIP network?
What I am trying to do is capture the WAV data of a phone conversation on a VOIP network using SharpPCap/PCap.Net.
We are using the H.323 recommendation and my understanding is that voice data is located in the RTP packets. However, there is no way…
Chris Holmes
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OpalVoip Still sending OLC after Recieving Empty TCS
Empty TCS is used for pausing and re-routing a call.
Why is OpalVoip still sending OLC requests while on HOLD. Opal v 3.12(Eridani)
Sujithra
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Detect H.323 by simple sniffing?
Is it possible to detect if a H.323 connection (phone call) is up by simple sniffing traffic on an adjacent node?
atrent
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Interoperability of SIP/H.323/IAX2
I am curious to know if interoperability exists between those three protocols. Like if a call originated from a SIP protocol can go through a H.323 protocol? An article or book link about this topic will be much appreciated.Thanks.
Tahlil
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VOIP Protocols for Mobile Dialer
I want to make a bandwidth efficient voip dialer. Cant seem to make up my mind about which protocol to use. I see 3 main candidates SIP, H.323, IAX2. Can anyone please suggest me what to use and why? Also possibly some links or books to read more :)
Tahlil
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one way audio scenario
I have a setup
Server1------Server2--------Server3
We have h323 trunking between the all servers.
Call is initiated from server 1 to server2 which CFNA's it to server3.
On seeing the traces I observed ,during the inital OLC from server3 to…
alubna
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H.323 Request Java
I need to send a call using h.323 protocol in java, I do not need audio, just the call connects. for that I am using an IP gateway, but I need to send the request mode and ready, like I can do?
user2478617
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