Frequently Asked Questions Internet
You have just configured the OpenCom 510 via the network. Why is it not possible now to establish a remote data transfer network connection?
The network card and the communication (remote data transfer) adapter cannot be run with the same routing setting. Deactivate the network card before connecting via the dial-up network.
Our network has grown over time, with several segments connected by one central router. How can PCs from all segments connect to the OpenCom 510?
If several routers are configured for your network in different segments, you can enter extra static routes in the NET Configuration: LAN: Routes menu.
In our network the OpenCom 510 dynamically issues the IP addresses by
DHCP. Can I firmly assign the IP address for our internal server PCs (mail,
Web)?
You need a static address assignment for these PCs. Make the appropriate host assignment entries in the Configurator ( NET Configuration : LAN : Hosts menu).
Create a static DHCP entry for each host assignment in the NET Configuration :
LAN : DHCP Server menu. Activate “Dynamic and static address” for the DHCP server.
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Internet
I cannot access our company Web site.
Outside your system, your company Web site is accessed at “www.firm.com”, but in the Configurator you have entered “firm.com” as the domain. Your company’s site URL thus counts as an internal URL and can only be accessed by entering the direct IP address. If required, change the domain setting in the NET Configuration : LAN menu.
Why do some Internet services not work even though they can be used when dialling in directly via a modem?
Some Internet services require an active connection coming from the Internet. But the configured filter rules prevent this. Plus, it is not possible to establish incoming
Internet connections with the PCs directly owing to the network address translation process.
It is possible to redirect incoming connections in the Configurator , menu NET
Configuration : Port Forwarding . You should secure the redirection target (PC or server) with a suitable firewall software.
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Frequently Asked Questions Internet
It is not possible to access the Internet with the OpenPhone 27.
The requirement for this is that the set should be configured as Handset+data
(only with RFP 21/23). The telephone number used by the OpenPhone 27 to establish an Internet connection must also be specified in the respective user profile ( Configurator , User Manager: User menu).
With the OpenPhone 27, the Internet can be accessed either directly via the remote data transfer network or indirectly via RAS access on the OpenCom 510.
For direct access you can directly dial any provider. Indirect access uses the routing function of the OpenCom 510, accompanied by the configured security features, for example.
Directly via remote data transfer network
If the Internet is accessed directly via the remote data transfer network, make sure that
■ the remote data transfer network is properly installed on your PC and that the correct ISP access data is configured,
■ the internal number used by the OpenPhone 27 to establish the data connection is configured for outgoing call distribution ( Configurator , PBX Configuration: Call Distribution: Outgoing menu).
Indirectly via RAS access
If the Internet is accessed indirectly via RAS, the system administrator should make sure that:
■ permission has been given for Internet access via RAS ( Configurator , Net Configuration: Firewall menu),
■ an internal number is configured for RAS access ( Configurator , Net Configuration: Connections: RAS menu),
■ your user group has been granted RAS access rights ( Configurator , User
Manager: User Groups menu).
For information on the installation of software and on configuring Internet access, refer to the “OpenPhone 26/27” user guide.
A SIP connection only passes unidirectional voice. What is the reason?
You did not use the OpenCom 510 as internet router or the STUN server of the SIP provider is unavailable. You need to activate the SIP support at your internet
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Frequently Asked Questions Internet router, such as “SIP-ALG” or “Full Cone NAT” functions. You can also use the
OpenCom 510 for internet access. Correct the STUN setting in the PBX Configuration : SIP Provider menu.
Is it possible to use Q.SIG-IP connections via an Internet access with dynamic
IP address?
Q.SIG-IP connections require a fixed IP assignment for technical and security reasons. Therefore you need an Internet access with a fixed IP address. It is possible to tunnel a Q.SIG-IP connection through a VPN connection. A VPN connection offers the possibility to determine the peer’s IP address with a DynDNS service during connection setup. VPN and DynDNS can be realized with external servers or routers.
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