Can I run more then one VoIP Device within one network (router)?

Yes, you can use two or more VoIP devices within one network or behind a router.
For some routers you need additional settings. In this case you have to configure for the different VoIP devices, different "Listen SIP Ports" and "Listen RTP Ports" to guarantee a correct data transmission. Our devices are preconfigured as follows:

• Listen SIP Port: 5060
• Listen RTP Port: 5004

Please setup the next VoIP devices as follows:

• Listen SIP Port: 5062
• Listen RTP Port: 5006

In some cases you have to configure a port forwarding for above ports at your router.