USG Flex 100H - SIP Trunk - how to open Ports and where to find SIP related settings
Hello Experts,
I hope this will be the last question for the next time but I need your help - again.
I need to set up an IP-VoIP-Telephone System connected to the LAN-Port of my USG Flex 100H. The SIP-Trunk is up (initiated by the phone system), outgoing works already. But I'm not able to receive calls.
Here's the setup:
static IP VDSL (93.172.x.y) + Telekom Company Connect SIP-Trunk → USG WAN→VLAN7 (PPPoE) → LAN (192.168.20.x) → ansitel PBX VoIP-system (192.168.20.240) / IP phones (192.168.20.x) provisioned in ansitel PBX VoIP-system.
1st: How do I open ports correctly from WAN to ansitel PBX VoIP-system and vice versa?
→ attached to the post there is a picture with the necessary ports/connections (where A is customer-/Zyxel USG-site, B is provider site, "Richtung" means direction)
2nd: Do I have to route/NAT anything?
3rd: Where can I find, enable/disable things like SIP helper/ALG
Again - many thanks in advance!
Accepted Solution
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Hi @DJWindows
According to your scenario, you may need to enable the SIP ALG function; however, the USG Flex H series model doesn't support this feature. We will assess the importance of this requirement and consider implementing this feature in the future. Thank you.
0
All Replies
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Hi @DJWindows
According to your scenario, you may need to enable the SIP ALG function; however, the USG Flex H series model doesn't support this feature. We will assess the importance of this requirement and consider implementing this feature in the future. Thank you.
0
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