Configuring Audio Features
751
To configure the
opus sample rate via web user interface (take SIP-T54S IP phones for
example:
1.
Click on
Account
->
Codec
.
2.
Select the desired value from the pull-down list of
Opus Sample Rate
.
3.
Click
Confirm
to accept the change.
Packetization Time (PTime)
Ptime 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.
The following table summarizes the valid values of ptime for each audio codec:
Codec
Packetization Time
(Minimun)
Packetization Time (Maximun)
G722
10ms
40ms
PCMA
10ms
40ms
PCMU
10ms
40ms
G729
10ms
80ms
G726-16
10ms
30ms
G726-24
10ms
30ms
Summary of Contents for SIP-T19 E2 T4 Series
Page 1: ...63 ...
Page 532: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series IP Phones 510 ...
Page 734: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series IP Phones 712 ...
Page 814: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series IP Phones 792 ...
Page 850: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series IP Phones 828 ...
Page 887: ...Troubleshooting 865 The phone begins rebooting Any reboot of the phone may take a few minutes ...