Advanced Settings |
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| Proxy | Enter the DNS name or IP address of the SIP server. A 26 digit alpha-numeric sequence is possible. |
| Proxy Port | Enter the number of the port to be used for the connection to the proxy. The default value is 5060 . A 5 digit sequence is possible. |
| Transport Protocol | Select the transport protocol for the connection. |
| UDP | |
| TCP | |
Further Settings |
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| From Domain | Enter the SIP provider's "From Domain". It is used after the @ as sender data in the SIP header of the SIP data packages.  Example : From: <sip:0314760249@FromDomainExample;user=phone> |
| Number of allowed simultaneous Calls | Select the maximum number of calls that shall be simultaneously possible Please also note the settings for bandwidth management here. |
Location
| Select the location of the SIP server. Locations are defined in the VoIP->Settings->Locations menu. |
| Any Location | (default value)The server is not operated at any defined location. |
| <Location Name> | Defined in the VoIP->Settings->Locations menu. |
| Codec Profiles | Select the codec profile for this SIP server. Codec profiles are defined in the VoIP->Settings->Codec Profiles menu. |
| | System Default | (default value) The server is operated with a codec profile predefined in the system. |
| | <Codec profile name> | Defined in the VoIP->Settings->Codec Profiles menu. |
| Dial End Monitoring Time | Select the time (after dialling the last digit of a call number) after which the system begins external dialling. |
| Call Hold inside the PBX system | Select whether a telephone call in the system can be switched to hold without losing the connection (inquiry calls/brokering). If this function is not enabled, the call is held at the SIP provider, if he supports this performance feature. |
| Call Forwarding extern (SIP 302) | Select whether calls are to be redirected externally with the SIP provider. The call is forwarded using SIP status code 302. |
| Generate international phone number | If you have enabled this function and entered 43 (for Austria) underGlobal Settings Country Profile, the 0043 before a number dialled with area code is generated automatically. |
| Generate national subscriber number | If you have enabled this function and entered the National Prefix / City Code ( e.g. for Abfaltersbach 4846 ) under Global Settings, the 4846 before a number dialled with area code is generated automatically. |
| Deactivate number suppression | If you enable this function, the number is always sent, independently of whether you have switched Suppress outgoing CLIP (CLIR) on or off for an extension. |
| SIP Header Field for User Name | Select the position of the user name (user ID) in the SIP header for outgoing calls. |
| P-Preferred | The so-called "p-preferred-identity" field is added to the SIP header and contains the User Name. Example : P-Preferred-Identity: <sip:hybirdtest@vcproxy.voiceworks.nl;user=phone> |
| P-Asserted | The so-called "p-asserted-identity" field is added to the SIP header and contains the User Name. Example : P-Asserted-Identity: <sip:hybirdtest@vcproxy.voiceworks.nl;user=phone> |
| None | The User Name is not transmitted. |
| SIP Header Field(s) for Caller Address | Select the position of the sender ID (e.g. subscriber number) in the SIP header for outgoing calls. (For incoming calls, the subscriber number is taken automatically from the SIP header.) |
Display | The sender ID is placed in the "Display" field of the SIP header. Example : From: "0314760249" <sip:hybirdtest@vcproxy.voiceworks.nl> |
Username | The sender ID is transferred to the "User" field of the SIP header. Example : From: <sip:0314760249@vcproxy.voiceworks.nl;user=phone> |
P-Preferred | The so-called "p-preferred-identity" field is added to the SIP header to transmit the sender ID there. Example : From: <sip:hybirdtest@vcproxy.voiceworks.nl> P-Preferred-Identity: <sip:0314760249@vcproxy.voiceworks.nl;user=phone> |
P-Asserted | The so-called "p-asserted-identity" field is added to the SIP header to transmit the sender ID there. Example : From: <sip:hybirdtest@vcproxy.voiceworks.nl> P-Asserted-Identity: <sip:0314760249@vcproxy.voiceworks.nl;user=phone> |
| Substitution of International Prefix with "+" | Select whether the prefix (e.g. 00) should be replaced by + for international numbers. |
| PBX coupling | Select whether another PABX can log into your system. In this way, several PABX systems can be linked. |
| Delete SIP bindings after Restart | If after registering with a provider a reset of the system should occur, for example, or a power failure, depending on the provider, another registration may prove impossible. Enabling these performance features allows re-registration after restart. |
| Upstreaming Device with NAT | If you enable this function, you can use a gateway with NAT and still make VoIP calls. Without this function, it may not be possible to call you with VoIP if you use a gateway with NAT. |
| Early media support | Select whether you'll allow exchange of voice and audio data before a receiver accepts a call. |
| Provider without Registration | Select whether registration and authentication with a provider can be eliminated. In this case, the relevant data can be sent to a specific IP address already known to the correspondent. An example of this method is Microsoft Exchange SIP. |
| T.38 FAX support | Select whether faxes shall be transmitted with T.38. |
| Substitution of Incoming Number Prefix | For incoming calls, if the call number should be forwarded in the system in modified form: in the first input field enter the sequence of the incoming number to be replaced by the number sequence entered in the second input field. |
