To Next Page

To Previous Page

P a g e | 65

GXW400X User Manual

Jitter Buffer Length

Select Low, Medium or High based on network conditions.

 High (initial 200ms, min 40ms, max 600ms) Note: not all vocoders can

meet the high requirement

 Medium (initial 100ms, min 20ms, max 200ms)

 Low (initial 50ms, min 10ms, max 100ms)

SRTP Mode

Default is Disabled. Other options are Enabled but not forced, and Enabled

and forced.

It uses SDP Security Description to exchange key. Please refer

SDES: http://www.rfc-base.org/rfc-4568.html

SRTP: http://www.rfc-base.org/rfc-3711.html

Crypto Life Time

Default is Enabled. Allows user to enable or disable Crypto life time when using

SRTP.

SLIC Setting

Depends on standard phone type (and location).

Caller ID Scheme

Select the value according to the local Telco standard where the GXW400X is

installed.

Please refer to the pull down list to select.

Polarity Reversal

Default is No. If set to “Yes”, polarity will be reversed upon call establishment and

termination.

Loop Current

Disconnect

Set to Yes if the traditional PBX you are using with GXW400X uses this method

for signaling call termination. Default is No.

Grandstream Networks GXW400X User Manual

Questions and Answers: