Matrix SPARSH VP110 User Guide 287
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.
Procedure
Configuration changes can be performed using the configuration files or locally.
To configure the codecs to use and adjust the priority of the enabled codecs via web user interface:
• Click on Account ->Codec.
G726‐32
ConfigurationFiles
WebUserInt erface
0102
iLBC
ConfigurationFiles
WebUserInt erface
0 106
ConfigurationFile <MAC>.cfg
Configurethecodecstouse.
Configurethepriorityandrtpmapfor
theenabledcodec.
Formoreinformation,refer
“AppendixD‐Configuration
Parameters”.
Configuretheptime.
Formoreinformation,refer
“AppendixD‐Configuration
Parameters”.
Local WebUserInterface
Configurethecodecstousean
d
adjustthepriorityoftheenabled
codecs.
Configuretheptime.
Navigateto:
http://<phoneIPAddress>/
servlet?p=account‐
codec&q=load&acc=0