Default Rtp/Rtcp/T.38 Ports; Industry Standard Packet Types; Table 35 Default Rtp/Rtcp/T.38 Port Allocation; Table 36 Industry Standard Packet Types - Nortel VoIP Gateway Configuration Manual

Table 34 VoIP Gateway functional specifications (Continued)
Management and
Maintenance
Interoperability
Interoperability

Default RTP/RTCP/T.38 Ports

Table 35 Default RTP/RTCP/T.38 port allocation

Channel Number
1
2
3
4

Industry standard packet types

Table 36 Industry standard packet types

Payload Type
0
2
4
8
18
200
201
202
203
204
• SNMP
• SysLog, per RFC 3164
• Local RS-232 terminal
• Web Management
• For information about the systems and devices that the Norstar VoIP Gateway
works with, refer to Appendix E, "Interoperability," on page
RTP Port
4000
4010
4020
4030
Description
G.711 µ-Law
G.726-32
G.723 (6.3/5.3 kbps)
G.711 A-Law
G.729
RTCP Sender Report
RTCP Receiver Report
RTCP SDES packet
RTCP BYE packet
RTCP APP packet
Default RTP/RTCP/T.38 Ports
RTCP Port
4001
4011
4021
4031
Basic Packet Rate [msec]
20
20
30
20
20
Randomly, approximately every 5 sec
(when packets are sent by channel)
Randomly, approximately every 5 sec
(when channel is only receiving)
Norstar VoIP Gateway Configuration Guide
175.
T.38 Port
4002
4012
4022
4032
209