SIP register Problem
I hope that someone could help me.
PFSense 2.4.2 without additional packages. 1 Yealink W52P in LAN 1. The VOIP telephone connect to a swiss sip Provider outside of the pfsense to port 5060.
The Registration failed. If I sniff, I see, that the phone makes a dns query and receive the correct IP. May it couldn't connect to the Provider.
- I've tested with an other SIP phone, same
- Sipproxy (only Change the outbound/inbound Interface), set outboundproxy in the sipphone to the pfsense gw ip, same
Has anyone an idea?
Step 1: Uninstall siproxd. It will almost certainly only hurt, not help.
Step 2: What else is in the capture after the phone obtains the IP address to connect to?
Not related to pfSense yet.
Remove all your customization - Sipproxy, outboundproxy, etc., then speak to your provider.
If you want to find a root cause yourself - look into your SIP traffic on both LAN and WAN.
I've found the Problem. It wasn't on the pfsense.
It was a DOS-Prevention on a Zyxel Switch.