User manual

Custom ring tone 2, used if incoming caller ID is

Custom ring tone 3, used if incoming caller ID is

Disable Call-Waiting:

No Yes

Use Quick IP-call mode:

No Yes

ock keypad update:

No Yes (configuration update via keypad is

disabled if set to Yes)

Update

Admin

Password

Administrator password. Only administrator can configure the

“Advanced Settings” page. Password field is purposely left blank for

security reason after clicking update and saved. The maximum

password length is 25 characters.

Silence

Suppression

This controls the silence suppression/VAD feature of G723 and G729.

If set to “Yes”, when a silence is detected, small quantity of VAD

packets (instead of audio packets) will be sent during the period of no

talking. If set to “No”, this feature is disabled.

Voice Frames

per TX

This field contains the number of voice frames to be transmitted in a

single packet. When 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.

e.g., if the first vocoder is configured as G723 and the “Voice Frames

per TX” is set to be 2, then the “ptime” value in the SDP message of an

INVITE request will be 60ms because each G723 voice frame contains

30ms of audio. Similarly, if this field is set to be 2 and if the first

vocoder chosen is G729 or G711 or G726, then the “ptime” value in

the SDP message of an INVITE request will be 20ms.

If the configured voice frames per TX exceeds the maximum allowed

value, the GXP-2000 will use and save the maximum allowed value for

the corresponding first vocoder choice. The maximum value for PCM

is 10(x10ms) frames; for G726, it is 20 (x10ms) frames; for G723, it is

32 (x30ms) frames; for G729/G728, 64 (x10ms) and 64 (x2.5ms)

frames respectively.