SPA3102 with firmware version 5.1.10GW (hardware version 1.4.5a) that keeps on loosin gthe registration of the PSTN Line only when connected remotely (outside of the local network where the PBX is located). My SIP server is based on PBX in a Flash, and it is working with all latest patches based on Asterisk 1.4.
LINE1 of SPA3102 registers properly and stays registered without a problem (port number assigned to this line is 5060), but PSTN Line tries to registeres, if it succeds, it will loose its registation within 10 seconds (port number assigned to this line is 5061). All ports neccesary and NAT configuration on my firewall are correct, if not, LINE1 will not register either.
If I place the SPA3102 on the local network, then the problem dissapears and both Line1 and PSTN Line stay registered without a problem. I cannot understand how just by changing the PROXY address with my FQDN or static public IP address causes only the PSTN Line to loose registration. Any suggestion on how to troubleshoot this problem will be greatly appreciated. If need be, I can provide the configuration for the VOICE portion of the SPA3102 as an HTML file.
On further troubleshooting, I downgraded the unit to firmware version to 5.1.7GW, as I read that there are some possible issues with firmware version 5.1.10GW, but the problem is still the same. The SPA3102 registers properly when inside the local network and the proxy is set to 192.168.1.XXX, but when the proxy gets replaced by the FQDN of the PBX in a Flash server (all other configuration parameters remain unchanged), and I place teh SPA3102 on a different network, then LINE1 registers properly, but PSTN Line does not register. It seems as if the PSTN Line proxy parameter is not being recognized properly whether it is the FQDN or the actual static IP address of the PBX.
Message was edited by: markiper_cisco