Dinstar DWG2000C, User Manual, Page: 40 / 51

DWG2000C-4/8G User Manual
39 / 51
Enable Silence
Suppression
Enable the "silence suppression" almost no impact on call quality, and can save
about half of the bandwidth.
Call Progress Tone Each country has its different call progress tone required standards, such as
busy tone, ring back tones and ring tone.
Preferred Coders Means the code format when Voice transfer on IP network, support PCMA,
PCMU, G.723.1 andG.729AB.
Enable PSTN Incoming
Configuration
Means when call from PSTN side, you can dial the function keys for checking
number, setting IP and so on
Enable Auto Outgoing
Routing
Means when call out , whether by ordinal or polling pick to Select a Channel,
this feature are generally used when use the same SIP User ID to register
IP to PSTN One Stage
Dialing
The User ID will be sent directly to PSTN, for example: the user calls 6715, the
device will sent 6715 User ID to PSTN
Play Voice Prompt for
PSTN Incoming Calls
Setting is yes, when through the PSTN calls to the Channel, the device will with
the clew tone, the default is "Please dial the extension User ID"; setting to No,
the device will play dial tone
DTMF DWG2001/DWG2004/DWG2000C-4/8G support RFC2833 and SIGNAL two
ways. DTMF INTERVAL range is 50 ~ 800ms, DTMF VOLUME can use the
default Configuration
Nat Traversal Include Static NAT and STUN,
NAT’s UDP simple cross
STUN STUN (Simple Traversal of UDP over NATs ) is a network protocol. It is allowed
to stay behind the NAT (or multiple NAT) c
lient part to identify their clients’
public address, found himself after what Type of NAT and NAT for a particular
Channel is bound to a local Internet terminal Channel. This information is used
for two host to set up UDP communication behind the same NAT router. The
agreement defined by the RFC 3489
Allow call from IP to
PSTN without
Registration
Refer to "SIP Configuration" -> "Is register" . If "Is register" setting is no, this
option need set Yes ,to avoid that the devices can not call out
Allow Call from PSTN to
IP without Registration
Refer to "SIP Configuration" -> "Is register" . If "Is register" setting is no, this
option need set Yes ,to avoid that the devices can not call in
Reject Anonymous call The incoming anonymous calls will be rejected
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