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Introduction

Security is very important in VoIP installations, the Hybird 120 GE has different security mechanism, here we explain the most important information needed for VoIP security.

  • Only Registrations from Private networks are allowed. (A & B)
    • 192.168.0.0 - 192.168.255.255
    • 172.16.0.0 - 172.31.255.255
    • 10.0.0.0 - 10.255.255.255
  • SIP registrations from the Internet are not allowed (B)
  • If SIP registration is not expired then a new SIP registration from different IP address is not allowed. (A)

 

By default the system will not allow any SIP registrations from the Internet and therefore the highest security against Hackers.

 

 

Important

When a VoIP devices is registered to the PBX and the device restarts, it can happen that the DHCP server will give a new IP address to this device. The device will then try again the register itself but the following can happen.

  • Registration is not expired, new Registration will be blocked.
  • Registration is expired, new Registration is accepted.

This behaviour is mostly seen when the DHCP server is not the Hybird 120 GE. When the Hybird 120 Gigaset edition is the DHCP server then the device will get the same IP address and then there is no problem.

To solve this you can:

  • Make sure that DHCP leases are done and the device will always get the same IP address.
  • Decrease the SIP registration timer to 60 seconds.
  • Reboot the System to make registration possible again.

 

The above default settings can be changed in the system.

Locations

In the VoIP->Settings->Locations menu you configure the locations of the VoIP subscribers who have been configured on your system, and define the bandwidth management for the VoIP traffic.

Individual locations can be set up for using the bandwidth management. A location is identified from its fixed IP address or DynDNS address or from the interface to which the device is connected. The available VoIP bandwidth (up- and downstream) can then be set up for
each location.

 

 

 

VoIP->Settings->Locations
Fields in the Registration behavior for VoIP subscribers without assigned location menu.

FieldDescription
Default Behavior

Specify how the system is to proceed when registering VoIP subscribers for whom no location has been defined.
Possible values:
• Registration for private Networks Only (default value): The VoIP subscriber is only registered if located within
the private network.
• No Registration: The VoIP subscriber is never registered.
• Unrestricted Registration The VoIP subscriber is always registered.

 

Edit or New

 

 

 

 

 

 

VoIP->Settings->Locations->New

The menu VoIP->Settings->Locations->New consists of the following fields:

FieldDescription
DescriptionEnter the description of the entry.
Parent Location

You can cascade the SIP locations as you wish. Define here which SIP location that has been defined constitutes the high level node for the SIP location to be configured here.

Type

Select whether the location is to be defined through IP addresses / DNS names or interfaces.
Possible values:
• Adresses (default value): The SIP location is defined via IP addresses or DNS names.
• Interfaces: The SIP location is defined via the available interfaces.

  

 

 

 

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