Panasonic KX-TDE100 manual Important Notice for Subscription and Installation, Port Requirements

1.2.2 Firewall Requirements

1.2 Important Notice for Subscription and Installation

1.2.1 Port Requirements

Required Ports for Each Channel

When configuring a router with NAT enabled, you need to secure a certain number of ports for each SIP and RTP/RTCP channel. For RTP/RTCP, the number of required ports is double the number of activated SIP trunks (Ch). For SIP signalling, the number of required ports is always one regardless of the number of activated SIP trunks (Ch).

<Example>

If 4 SIP trunk channels are activated, you need the following number of ports:

Protocol Type

RTP

RTCP

SIP

Total

Required Port

4

4

1

9

1.2.2 Firewall Requirements

If the VoIP network contains a firewall, you must configure the firewall to allow VoIP packets to pass through certain ports of the ports listed below without being blocked by filtering. The ports for which you need to configure the firewall may vary depending on the network conditions.

For more information, consult your network administrator.

[IP Packets to V-SIPGW16 Card]

Port	TCP/UDP	Default Port No.
SIP Client Port	UDP	35060
STUN Client Port	UDP	33478
NAT Voice (RTP) UDP Port	UDP	16000 to N
DNS (Client) Port	UDP	30053
[IP Packets from V-SIPGW16 Card]
Port	TCP/UDP	Default Port No.
SIP Server Port	UDP	5060
Registrar Server Port	UDP	5060
STUN Server Port	UDP	3478
Manual DNS Server Port	UDP	53

Programming Manual for Virtual SIP Trunk Card

7