I’ve been testing out SIPStation with FreePBX 16, and I’ve been able to make calls but not receive them. Phone tries to connect and then disconnects. Nothing even appears on the SIPStation account. Sangoma support tells me that there are two IP addresses that they’re seeing. The *.206 address is the main company address, and the other is a static NAT assignment that FreePBX should be using. All traffic should be NATted with *.213, so how do I change the Contact IP?
Accidentally switched back to the *.206 address. Incoming calls now have a busy tone. The inbound route goes straight to an extension that can call out and receive calls from other extensions. SIPStation is still only reporting outbound calls. Packet capture shows registration SIP packets and nothing that would indicate a call being received.
I don’t know if this means anything, but there is no trunk showing up in the SIPStation account.
NAT can cause a lot of drama for SIP. What sort of firewall are you using ?
NAT is handled by a Cisco 2900 Series ISR. We don’t use a firewall appliance.
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