Draytek Vigor2920n User's Guide download pdf (Page 266)

Vigor2920 Series User’s Guide

254

Index (1-60) in Phone Book - Enter the index of phone book

profiles. Refer to section DialPlan – Phone Book for detailed

configuration.

CLIR (hide caller ID) Check this box to hide the caller ID on the display panel of the

phone set.

Call Waiting Check this box to invoke this function. A notice sound will

appear to tell the user new phone call is waiting for your

response. Click hook flash to pick up the waiting phone call.

Call Transfer Check this box to invoke this function. Click hook flash to

initiate another phone call. When the phone call connection

succeeds, hang up the phone. The other two sides can

communicate, then.

Prefer Codec Select one of five codecs as the default for your VoIP calls. The

codec used for each call will be negotiated with the peer party

before each session, and so may not be your default choice. The

default codec is G.729A/B; it occupies little bandwidth while

maintaining good voice quality.

If your upstream speed is only 64Kbps, do not use G.711 codec.

It is better for you to have at least 256Kbps upstream if you

would like to use G.711.

Single Codec – If the box is checked, only the selected Codec

will be applied.

Packet Size-The amount of data contained in a single packet.

The default value is 20 ms, which means the data packet will

contain 20 ms voice information.

Voice Active Detector - This function can detect if the voice

on both sides is active or not. If not, the router will do

something to save the bandwidth for other using. Click On to

invoke this function; click off to close the function.

Default SIP Account You can set SIP accounts (up to six groups) on SIP Account

page. Use the drop down list to choose one of the profile names

for the accounts as the default one for this phone setting.

Play dial tone only when account registered - Check this box

to invoke the function.

1 2 ... 261 262 263 264 265 266 267 268 269 270 271 ... 354 355

Draytek Vigor2920n User's Guide Page 266