How to troubleshoot one-way audio?
The first step would be to try to limit the devices between the ATA and the Internet. To do this connect the ATA directly to the first device, which would usually be a modem. (You may have to do a power cycle of the modem to get the VoIP ATA to connect.) If you still have problem with one-way audio here are some other things you can try: 1. Determine where the public IP address is sitting and if possible configure the network so the ATA/router receives a public IP address. 2. Configure any firewalls to allow the correct ports needed to pass directly to the ATA. 3. Place the ATA VoIP device in a DMZ or perimeter zone, where it will sit outside the firewall. [Back to top] • Integrating an Alarm system with VoIP. Alarm companies are currently coming to grips with the realization that they will need to make their services work with VoIP. Some companies can get their equipment to make the necessary communications and line seizure, but many cannot and will not support the service over VoIP.
