What is RTP and What Do I Need to Know About It?
Phillip:
Hi All,
In my case, newbie is appropriate. I have been involved in the development of digital voice encoding technology, but my work was far removed from applied telephony, network protocols or VoiP technology. What I know about networks you could fit on a tic-tac-toe board.
I have been reading a lot of threads and topics where RTP is mentioned. I understand that this has something to do with network packets but I am otherwise ignorant. Perhaps there is a related term I might recognize? But in terms of how various configuration parameters are set, what do I need to know about RTP?
QBZappy:
More than you ever need to know can be found here:
3-part on SIP protocol
http://www.obitalk.com/forum/index.php?topic=4551.0
Phillip:
Hi QBZappy,
Thanks for the links. But its really kind of overwhelming. ;D I am currently wading through the technical explanation of SIP you linked, however I was still wondering; at this time and at my level of my expertise, is all of this really necessary? Don't get me wrong. I will over time begin to internalize this information. But could you give me the short version? Pleeease? I'm memorizing as fast as I can! Technical articles aren't something I usually speed read.
What does RTP stand for? I haven't run across it as such and I'm about halfway through the articles. So in layman's terms, what is it? And finally, how much do I really need to know about it to apply the configuration advice I am reading on this site?
jwcmb:
I thought the Wikipedia article was a nice summary of the Real-time Transport Protocol and its role in IP telephony: http://en.wikipedia.org/wiki/Real-time_Transport_Protocol
As far as what you need to know to configure and use your Obi device, my own personal opinion is that the following are initially a much better use of your time than poring over technical articles: (1) carefully reading and searching the forum posts here and the Obi Device Admin Guide (which I believe are both excellent resources), and (2) digging right in and gaining experience making some configuration changes and seeing the results.
QBZappy:
Quote from: Phillip on February 10, 2013, 02:39:32 pm
I have been reading a lot of threads and topics where RTP is mentioned. I understand that this has something to do with network packets but I am otherwise ignorant. Perhaps there is a related term I might recognize? But in terms of how various configuration parameters are set, what do I need to know about RTP?
In a nutshell this should suffice as an explanation to get you started.
A sip call has a signaling part (rings the phone) and another part which passes the voice conversation part (media). The RTP settings in the OBi control which ports to use for the voice conversation part. There is usually no need to change these values (port numbers) unless it conflicts with another app or another voip setup, which may be using the same port numbers.
You are expected to take an exam based on those articles you are reading. Note that a passing mark is 75%. :)
Navigation
[0] Message Index
[#] Next page