Other Network Considerations
Table 6: Transmitted Packets (Source = SIP IP Telephone) (continued)
Destination Port | Source Port | Use | UDP or TCP? |
|
|
|
|
514 | Any unused | Transmitted Syslog | UDP |
| port number | messages |
|
|
|
|
|
CNAPORT | Any | Transmitted CNA | TCP |
| otherwise | registration messages |
|
| unused port |
|
|
| number |
|
|
The port number specified in | 50000 | Transmitted CNA test results | UDP |
the test request message |
| messages |
|
|
|
|
|
Any unused | Transmitted signaling | TCP | |
| port number | protocol packets |
|
FEPORT or the port number | PORTAUD, | Transmitted RTP and SRTP | UDP |
specified in a CNA RTP test | which must | packets |
|
request | be in the |
|
|
| range |
|
|
| specified by |
|
|
| the |
|
|
| RTP_PORT |
|
|
| _LOW and |
|
|
| RTP_PORT |
|
|
| _RANGE |
|
|
| parameters |
|
|
| or the port |
|
|
| number |
|
|
| reserved for |
|
|
| CNA RTP |
|
|
| tests |
|
|
|
|
|
|
FEPORT + 1 (if FEPORT is | PORTAUD + | RTCP and SRTCP packets | UDP |
even) or FEPORT | 1 (if | transmitted to the |
|
FEPORT is odd) or the port | PORTAUD | the audio connection |
|
number specified in a CNA | is even) or |
|
|
RTP test request plus or minus | PORTAUD – |
|
|
one, as with FEPORT above | 1 (if |
|
|
| PORTAUD |
|
|
| is odd) or |
|
|
| the port |
|
|
| number |
|
|
| reserved for |
|
|
| CNA RTP |
|
|
| tests plus or |
|
|
| minus one, |
|
|
| as for |
|
|
| PORTAUD, |
|
|
| above |
|
|
|
|
|
|
|
|
| 2 of 3 |
|
|
|
|
Issue 2 December 2007 33
