I’m running FPBX-2.11.0(11.15.0) behind a firewall with the general Asterisk settings set “nat=yes”, and have setup several trunks to diffierent SIP providers where I have for every trunk configuration in their PEER details amongst other lines also
and the respective correct connection string.
With this setup I am able receive calls without any problems, can ping the SIP server with its “host” name, and when executing the command “sip show peers” on the Asterisk console, I can see under the “Status” column a message “OK” (with the respone dealy in ms).
Today, I’m running into a situation that another SIP provider refuses me to ping their “host” destination and is asking me to put for their trunk configuration in the PEER details
and the respective correct connection string, what I’ve done.
This done, I’am not able to receive any calls at all through this trunk, even I do not find any log entry of an incoming call in the /var/log/asterisk/full file or any messages when when running “asterisk -rvvvv”.
I raised to the provider the issue of not being able to receive calls, and that I cannot ping their “host”, however they claim that their security policy does not allow any of their customers to ping their servers, to quote “Customer’s have to setup their devices or systems properly to be able to receive calls through their trunks.”
So here I’m stranded now, I’ve tried several PEER config parameters, however no luck…
Did anybody face the same situation in the past or have any recommendation here on how to setup a trunk configuraton for a SIP provider as described above?