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What exactly does the &quot;synchronize&quot; process do in general terms? Also what happens if the threshhold is too high or too low? For example, if it were set to 300 or 4000 instead?
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What exactly does the "synchronize" process do in general terms? Also what happens if the threshhold is too high or too low? For example, if it were set to 300 or 4000 instead?

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Thanks for a clear, succinct explanation!
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Thanks for a clear, succinct explanation!

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Are there any <i>general </i> recommendations for Jitter Buffer settings in Asterisk? <br />
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I've searched around, but haven't found much aside from the brief comments in the config files. They just give the defaults but .. no explanations beyond that or description of what impact changes might have - good or bad.<br />
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<pre><code id="code-10-28459366-1">; jbmaxsize = 200             ; Max length of the jitterbuffer in milliseconds.

; jbresyncthreshold = 1000    ; Jump in the frame timestamps over which the jitterbuffer is
                              ; resynchronized. Useful to improve the quality of the voice, with
                              ; big jumps in/broken timestamps, usually sent from exotic devices
                              ; and programs. Defaults to 1000.</code></pre>
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Any tips would be GREATLY appreciated.
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Are there any general  recommendations for Jitter Buffer settings in Asterisk? 

I've searched around, but haven't found much aside from the brief comments in the config files. They just give the defaults but .. no explanations beyond that or description of what impact changes might have - good or bad.


(CODE)

Any tips would be GREATLY appreciated.

Recommendations for Jitter Buffer settings

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).

Voice Over IP

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.