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Example of HFO SIP gateway settings 1/2.

Example of HFO SIP gateway settings 2/2.

Registrar

Use here the SIP-Server / Registrar (as mentioned on the paper, received by HFO Telekom).

registrar.hfosip.de

Proxy

Enter here the Proxy-Server, followed by ';lr'.

proxy.hfosip.de;lr

User

Enter here the Username (Benutzername), followed by '@extrasip.de'. Extrasip.de is a registered address/realm from HFO Telecom. This is needed to properly register the trunk at the provider.

For example

0891234567@extrasip.de

Dial command

The dial command is the command which is used in the asterisk software. The term {number:1}  means, that at the dialled number (e.g. 0089987654321) the first digit is removed. If you don't use a line access code (in most cases '0' is used), you have to remove the ':1' ! ! !

Group

Select here the previously created gateway group.

Update remote party ID (CLIP)

To display the correct extension at external parties, you have to use the P-Asserted-Identity (PAI) setting. If this is not selected, only the head-number (e.g. 0891234567-0) will be presented, no matter which extension is used for dialing.

From Domain

Enter here the Domain/Realm delivered by HFO Telecom

hfosip.de

T38 support

In order to have a better fax-support for fax-machines, connected to the FXS ports, please deactivate this option. In case only T38 faxes are used in the communication, you can  activate this option. Activated T38 option may lead to wrong error messages when sending faxes via machines , which are connected to the FXS ports.

Underneath the configuration parameter you will see a preview of the complete sip.conf file.