Avaya 1603SW 사용자 가이드

Network Requirements

28 Avaya 1603SW-I SIP Deskphones Administrator Guide

Table 5: Transmitted Packets (Source = SIP IP Telephone)

Destination Port

Source Port

Use

UDP or TCP?

Any unused

port number

Transmitted DNS messages

UDP

Transmitted DHCP

messages

UDP

80 unless explicitly specified

otherwise (i.e. in a URL)

Any unused

port number

Packets transmitted by the

telephone’s HTTP client

TCP

123

Any unused

port number

Transmitted SNTP

messages

UDP

The number used in the

Source Port field of the SNMP

query packet received by the

deskphone

161

Transmitted SNMP

messages

UDP

443 unless explicitly specified

otherwise (i.e. in a URL)

Any unused

port number

TLS/SSL packets

transmitted by the

deskphone’s HTTP client

TCP

514

Any unused

port number

Transmitted Syslog

messages

UDP

System-specific

Any unused

port number

Transmitted signaling

protocol packets

TCP

RTCPMONPORT

PORTAUD +

1 (if

PORTAUD

is even) or

PORTAUD –

1 (if

PORTAUD

is odd)

RTCP packets transmitted to
an RTCP monitor

UDP

System-specific

Any unused

port number

Transmitted signaling
protocol packets

UDP