[root@vici ~]# nmap -v -sV localhost -p 5060
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2010-03-22 20:05 EDT
Initiating SYN Stealth Scan against vici.vicidialnow.org (127.0.0.1) [1 port] at 20:05
The SYN Stealth Scan took 0.00s to scan 1 total ports.
Host vici.vicidialnow.org (127.0.0.1) appears to be up ... good.
Interesting ports on vici.vicidialnow.org (127.0.0.1):
PORT STATE SERVICE VERSION
5060/tcp closed sip
Nmap finished: 1 IP address (1 host up) scanned in 0.026 seconds
Raw packets sent: 1 (44B) | Rcvd: 2 (84B)
[root@vici ~]#
5060 is Closed at my end of at ISP end as Server got Internet BUT cant register with VOIP provider ??
Same Provider settings works perfectly on another server.