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[FAQ]How to change CODEC in Yealink phones?
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RE: [FAQ] How to change CODEC in Yealink phones?
Packetization Time

Ptime (Packetization Time) is a measurement of the duration (in milliseconds) of the audio data in each RTP packet sent to the destination, and defines how much network bandwidth is used for the RTP stream transfer . Before establishing a conversation, codec and ptime are negotiated through SIP signaling. The valid values of ptime range from 10 to 60, in increments of 10 milliseconds. The default ptime is 20ms. You can also disable the ptime negotiation.

To configure the Ptime on a per-line basis via web user interface:
1. Click on Account.
2. Select the desired account from the pull-down list of Account.
3. Click on Advanced.
4. Select the desired value from the pull-down list of PTime (ms).

[Image: attachment.php?aid=694]

5. Click Confirm to accept the change.

The auto provisioning template for ptime is as below:
-------------------------------------------
#!version:1.0.0.1
##account.X.ptime = . It configures the RTP packet time for account X ##
##(Take account 1 for example)##
##ptime= 0 (Disabled), 10, 20, 30, 40, 50 or 60. The default value is 20.

account.1.ptime =

-------------------------------------------

Please be aware:

The purpose of these forums is to allow forum members collaborate and help each other.
Questions posted here won't be appreciated.
If you require assistance from Yealink technical support, please email to support@yealink.com or USA support support.usa@yealink.com


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(This post was last modified: 04-19-2014 12:19 PM by Yealink Support.)
04-01-2014 11:30 AM
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RE: [FAQ] How to change CODEC in Yealink phones? - Yealink Support - 04-01-2014 11:30 AM

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