SIP Port Example

SIP example:
 * "Registrar IP address or DNS name: 192.168.1.63 Port=5066" : This is the destination port
 * "SIP Port=5062" : This is the port used for sending and receiving on the phone side
 * The port numbers in this example are not necessarily useful, but demonstrate the possiblity of using asymmetric ports for source and destination (5062, 5066) or symmetric ports (if set to equal values).
 * The phone is at 192.168.1.8
 * The proxy is at 192.168.1.63

No.    Time        Source                Destination           Protocol Info 22 59.705702  192.168.1.8           192.168.1.63          SIP      Request: REGISTER sip:192.168.1.63:5066;transport=udp

Frame 22 (495 bytes on wire, 495 bytes captured) Ethernet II, Src: 192.168.1.8 (00:01:e3:24:05:ca), Dst: 192.168.1.63 (00:e0:00:5e:19:c0) Internet Protocol, Src: 192.168.1.8 (192.168.1.8), Dst: 192.168.1.63 (192.168.1.63) User Datagram Protocol, Src Port: 5062 (5062), Dst Port: 5066 (5066) Source port: 5062 (5062) Destination port: 5066 (5066) Length: 461 Checksum: 0x3745 [correct] Session Initiation Protocol Request-Line: REGISTER sip:192.168.1.63:5066;transport=udp SIP/2.0 Method: REGISTER Resent Packet: False Message Header Max-Forwards: 70 Content-Length: 0 Via: SIP/2.0/UDP 192.168.1.8:5062;branch=z9hG4bK90cd10ea5 Call-ID: 640b380ce00ee6f From: 49894773001 ;tag=2c324ccecfd8e16;epid=SC2405ca To: 49894773001  CSeq: 1 REGISTER Contact: 49894773001 ;expires=3605 User-Agent: optiPoint 410_420/V6 6.0.60

No.    Time        Source                Destination           Protocol Info 23 59.709419  192.168.1.63          192.168.1.8           SIP      Status: 200 OK    (1 bindings)

Frame 23 (455 bytes on wire, 455 bytes captured) Ethernet II, Src: 192.168.1.63 (00:e0:00:5e:19:c0), Dst: 192.168.1.8 (00:01:e3:24:05:ca) Internet Protocol, Src: 192.168.1.63 (192.168.1.63), Dst: 192.168.1.8 (192.168.1.8) User Datagram Protocol, Src Port: 5066 (5066), Dst Port: 5062 (5062) Source port: 5066 (5066) Destination port: 5062 (5062) Length: 421 Checksum: 0xd7ce [correct] Session Initiation Protocol Status-Line: SIP/2.0 200 OK       Status-Code: 200 Resent Packet: False Message Header Call-ID: 640b380ce00ee6f CSeq: 1 REGISTER From: 49894773001 ;tag=2c324ccecfd8e16;epid=SC2405ca To: 49894773001 ;tag=1d90e885136514d Via: SIP/2.0/UDP 192.168.1.8:5062;branch=z9hG4bK90cd10ea5 Content-Length: 0 Contact: 49894773001 ;expires=3600