Hello. I have a D-Link DIR-628 and a Linksys SPA2102. The Linksys SPA2102 is my VoIP adapter and I am using iTalkBB service.
My problem is with the D-Link router rejecting SIP ALG packets. While this does not cause a problem in general, it does block faxes.
I've tried disabling SIP ALG but then that results in the VoIP adapter not registering properly or giving me voice. I've tried disabling SPI, but faxes and SIP ALG packets are still being rejected. I've set Endpoint Independent for UDP and TCP (but not with SPI disabled) but SIP ALG packets are still being rejected and faxes fail to work.
All the ports needed for iTalkBB are being forwarded properly. Even in DMZ, the packets are being rejected and fax fails to work.
Any ideas or suggestions?
Thanks in advance.