Denwa Communications DW-V-AXT-ANDROID User Manual page 35

Sections
SIP Account
Codecs
Video codecs
Subscribe
DTMF
Call
Description
To display current Account settings or to select which account
to display.
To display and configure available/unavailable codecs list.
Codec means coder-decoder which is used to transfer analog
signal to digital signal or vice versa.
Familiar codecs are PCMU(G711U), PCMA(G711A), G722
(wid-bandth codecs),G729.
There are two video codecs: H263、H264. With different
codec resolution、bitrate and payload, it will present
different effects.
To display and configure MWI, BLF, ACD subscription settings.

MWI: Message Waiting Indicator which is used to
indicate whether there is unread new voice message.

BLF: BLF is short for Busy Lamp Field which is used to
monitor the designated extension status.

ACD: Automatic Call Distribution is often used in offices
for customer service, such as call center. The setting here
is to negotiate with the server about expire time of ACD
subscription.
To display and configure DTMF settings.

Type: Support Inband,Info,RFC2833 or their
combination.

How To Notify DTMF: Only available when DTMF Type is
Info.

DTMF Payload: To configure payload type for DTMF.
Note: By default, DTMF type is RFC2833 which is the
standard. Type Inband uses inband frequency to indicate
DTMF tone which is most used to be compatible to traditional
telephone server. Type Info use SIP Info message to indicate
DTMF message.
To display and configure call-related features.

Max Local SIP Port: To configure maximum local sip port
for designated account.

Min Local SIP Port: To configure minimum local sip port
for designated account.

Caller ID Header: To configure which Caller ID format to
fetch for displaying on Phone UI.

Auto Answer: If enabled, IP phone will be auto-answered
when there is an incoming call for designated account.

Ringtones: Choose the ringtone for each account.

Provisioning Response ACK: 100% reliability for all
provisional messages, this means it will send ACK every
time the IP phone receives a provisional SIP message