I have a TDM04B card. had been working for a while. using head from aug 2 2005. I just updated to 1.2.1 and everything is fine except 1 thing. Line 1&2 is company A line 3&4 company B. Call comes in on line 1 transfers to SIP/205 no problem. Call comes in on line 3 attempts to also transfer to SIP/205 and does not work. 205 hears the ring. They pickup and dead air. The calling in person just continiues to get ring like the line was never picked up. the SIP/205 is a uniden UIP-200. The 2 companies are the same just answer the phone in a differnt way. all extensions are shared etc... sip.conf has nat=never and qualify=no. Any idea why it might do that? I briefly switched back to head from aug 2005 and it is also doing the same thing. I have not physically moved any lines yet? I am not at that location. jerry