User manual

AT820

AT820 Series

Series

Series User

User

User Manual

Manual

ATCOM TECHNOLOGY CO., LIMITED www.atcom.cn

dial out successfully if the UAS does not support PARCK.

5.4.2

5.4.2 Codec

Codec

Codec Configuration

Configuration

A. Prefer Codec: Select a preferred codec for all calls, it will use the prefer codec to

create calls if the far end supports this codec . However, the actual codec used in a

call still depends on the outcome of the codec negotiation protocol.

B. User Prefer Codec Only: Whether to use the preferred codec only for all calls or not.

If select “ Y es ” , the call may fail if the far end does not support this codec.

C. DTMF Tx Method: Select the method to transmit DTMF signals to the far end:

InBand, RFC2833, and INFO . Default to RFC2833.

5.4.3

5.4.3 Call

Call

Call Feature

Feature

Feature Setting

Setting

A. Message Waiting: Whether to prompt if there is a voicemail.

B. Voice Mail Number: If user sets a voicemail number , then user can just dial it to

enter the voicemail box.

C. Pickup Service Code: Set the code to pick up calls. Default to “ *8

”

D. UDP Keep Alive Enable: Once enabled, the phone will keep sending UDP packet to

the register port of the server to make sure the server is staying available.

E. UDP Keep Alive Intvl: Set the interval time to send UDP packet.

Default Ring: Select a default ring for the phone when there

’

s an incoming call.

G. SRTP: Choose the mode of Secure Real Time Control Protocol . S upport s from the

server will be needed.