Dialogic 4000 Series SU4.1 Instrukcja Użytkownika Pobierz pdf (Strona 80)

Dialogic 4000 Media Gateway Series SU4.1 Reference Guide

Manual

payload

type value:

Some endpoints expect a certain payload type value. You can enter any

value between 96 and 127. In calls from SIP to the PSTN, Diva SIPcontrol

uses the value suggested by the endpoint. Generally, this parameter is

left at its default value.

Disable

CNG event:

Select this option to transmit the CNG event as an in-band audio signal

instead of an RTP event according to RFC 4733.

Note: This option is only available if the option Transmit as RTP event

is enabled.

T.38

Support:

T.38 is a protocol that enables fax transmissions on the IP network in real

time. Enable this option if T.38 fax should be supported. Note that this

feature is supported on Diva Media Boards with multiple ports only after

activating the respective license. See License Activation for more

information.

V.34

Support:

The V.34 fax transmission protocol allows facsimiles to be transmitted at

a maximum speed of 33.600 bps. Enable this option if V.34 should be

supported. Note that this feature is supported on Diva Media Boards with

multiple ports only after activating the respective license. See License

Activation for more information.

Maximum

datagram

size:

This value defines the maximum amount of data that can be transmitted

in one T.38 packet. Some endpoints are limited to packets of a certain

size. You can enter a value between 32 and 192. Default is 48 bytes.

Registrations

SIP devices can communicate directly if the URL of both devices is known, but in general,

SIP gateways are used in a network to enable functionalities such as routing, registration,

authentication, and authorization.

Registration at a registrar server can be useful because in many cases, only the SIP address

of a user is known but the location (SIP address of the device) is unknown or can change. A

registrar server keeps track of the location of user agents from which the registrar server

has received REGISTER requests. Thus, only the SIP address of the user needs to be sent to

the registrar server, which then returns one or more contact addresses for the user.

If Diva SIPcontrol is configured to use a registrar server, it registers with the server as soon

as it is active. Thus, all local addresses configured for registration are registered with the

server. You can use either a private registrar service or a public registrar server.

To configure a registrar server, open the Registrations section and click the Add button.

To change the settings, click the Details button on the right hand side. To open the online

help for a specific parameter, click the parameter, and a window with the help text will

appear.

You can configure the following parameters when you create or modify a registration:

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