I Have 2 sip-phones are both on the outside and the server is on the inside of the pix. (version 6.2)
i used the command
fixup protocol sip 5060
also
access-list sip permit udp any any eq 5060
access-list sip permit tcp any any eq 5060
access-group sip in int outside
but it doesnot work well sometime yet!
who can give me some advice about this!
thank you !