Session Expiration is the time (in seconds) at which the session is considered timed out,

 

 

 

 

 

provided no successful session refresh transaction occurs beforehand. The default value

 

 

 

 

 

is 180 seconds.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Min-SE

 

Defines the minimum session expiration (in seconds). Default is 90 seconds.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Caller Request Timer

 

If set to “Yes”, the phone will use session timer when it makes outbound calls if remote

 

 

 

 

 

party supports session timer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Callee Request Timer

 

If selecting “Yes”, the phone will use session timer when it receives inbound calls with

 

 

 

 

 

session timer request.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Force Timer

 

If set to “Yes”, the phone will use session timer even if the remote party does not support

 

 

 

 

 

this feature. If set to “No”, the session timer is enabled only when the remote party

 

 

 

 

 

supports this feature. To turn off Session Timer, select “No” for Caller Request Timer,

 

 

 

 

 

Callee Request Timer, and Force Timer.

 

 

 

 

 

 

 

 

 

 

UAC Specify Refresher

 

As a Caller, select UAC to use the phone as the refresher, or UAS to use the Callee or

 

 

 

 

 

proxy server as the refresher.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UAS Specify Refresher

 

As a Callee, select UAC to use caller or proxy server as the refresher, or UAS to use the

 

 

 

 

 

phone as the refresher.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Force INVITE

 

Session Timer can be refreshed using INVITE method or UPDATE method. Select “Yes”

 

 

 

 

 

to use INVITE method to refresh the session timer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Enable 100rel

 

PRACK (Provisional Acknowledgment) method enables reliability to SIP provisional

 

 

 

 

 

responses (1xx series).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Codec Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Preferred Vocoder

 

The DP715 supports up to 6 different Vocoder types including G.711 A-/U-law, G.726-32 ,

 

 

 

 

 

G.723.1, G.729A/B and iLBC. The user can configure Vocoders in a preference list that

 

 

 

 

 

will be included with the same preference order in SDP message. The first Vocoder is

 

 

 

 

 

entered by choosing the appropriate option in “Choice 1”. The last Vocoder is entered by

 

 

 

 

 

choosing the appropriate option in “Choice 6”.

 

 

 

 

 

 

 

 

 

 

VAD

 

Default is No. VAD allows detecting the absence of audio and conserves bandwidth by

 

 

 

 

 

preventing the transmission of “silent packets” over the network.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Jitter Buffer Type

 

Select either Fixed or Adaptive based on network conditions.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Jitter Buffer Length

 

Select Low, Medium, or High based on network conditions.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SRTP Mode

 

Secure RTP protocol used for media transmission over VoIP. Disabled by default. Other

 

 

 

 

 

modes are: enabled but not forced & enabled and forced.

 

 

 

 

 

 

 

 

 

 

G723 Rate

 

This defines the encoding rate for G723 vocoder. Default setting is 6.3kbps.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use First Matching

 

Default is No. If set to “Yes”, device will include only the first match vocoder in its 200OK

 

 

 

Vocoder in 200OK SDP

 

response, otherwise it will include all match vocoders in same order received in INVITE.

 

 

 

 

 

 

 

 

 

 

iLBC Frame Size

 

This sets the iLBC size in 20ms or 30ms

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

iLBC Payload Type

 

Defines payload type for iLBC. Default value is 97. The valid range is between 96 and

 

 

 

 

 

127.

 

 

 

 

 

 

 

 

 

 

Voice Frames per

 

This field contains the number of voice frames to be transmitted in a single packet. When

 

 

 

Packet

 

setting this value, the user should be aware of the requested packet time (used in SDP

 

 

 

 

 

message) as a result of configuring this parameter. This parameter is associated with the

 

 

 

 

 

first vocoder in the above vocoder Preference List or the actual used payload type

 

 

 

 

 

negotiated between the 2 conversation parties at run time.

 

 

 

 

 

 

 

Default is 2, up to 10/20/32/64 for G711/G726/G723/other codecs respectively)

 

 

 

 

 

 

 

 

Symmetric RTP

 

Default is No. When set to “Yes” the device will change the destination to send RTP

 

 

 

 

 

packets to the source IP address and port of the inbound RTP packet last received by the

 

 

 

 

 

device.

 

 

 

 

 

 

 

 

 

 

 

 

Firmware version 1.0.0.8

DP715/DP710 User Manual

Page 45 of 52

 

Page 45
Image 45
Grandstream Networks DP710 Min-SE, Caller Request Timer, Callee Request Timer, Force Timer, UAC Specify Refresher, Packet