Ports used by speech products
This topic summarizes ports used by Nuance speech software. If your system uses any of these ports for other software, you must resolve the conflicts by changing the configuration. In addition to configured and reserved ports, Speech Suite services might use random ports on an ephemeral basis (they use any available port, and there is no reservation or possibility of conflict).
Note: The Management Station provides roles that run more than one instance of a service on a host. The default port numbers shown below indicate defaults and assume a single instance of the given service. Additional service instances introduced on the same host will see port number increments, usually by 10. For example, the default port for Krypton is 8600; therefore, the second Krypton instance will use port 8610, the third 8620, and so on.
License Manager
The Nuance License Manager uses the following ports:
Port |
Parameter |
Default |
---|---|---|
License Manager |
27000 (27000@localhost) |
|
Vendor daemon port | None. See configuration information below. | Dynamically allocated. |
If you install multiple instances of License Manager for high-availability purposes, you can assign additional ports (a different port for each instance) when configuring the LicenseServerList.
Management Station
The Nuance Management Station reserves the following port: 8080
Watcher service
The watcher service uses the following ports. To change a port, contact Nuance Professional Services
Port |
Parameter |
Default |
---|---|---|
Communication port for watcher's SNMP module and your SNMP manager. |
wm.snmp.Port |
162 |
A range of TCP ports, reserved for security purposes but not used for communication. |
watcher.RestrictedTCPPorts | 6666-6669 |
Port for loading watcher's SNMP module |
watcher.Modules | 7161 |
Watcher listening port |
reserved | 7120 |
UDP ports to monitor watched processes. |
reserved |
7890 and 9919 |
TCP listener port for the watcher XML web service |
reserved | 8919 |
UDP port for the Management Station heartbeat |
reserved |
4444 |
Speech Server
The Nuance Speech Server uses the following ports:
Port |
Parameter |
Default |
---|---|---|
RTSP port |
4900 |
|
HTTP port |
90 |
|
Starting RTP port. Use an even number to comply with the RTP standard. See Flexible port usage. |
7892 |
|
Speech Server—MRCPv2 TCP port |
6075 |
|
Speech Server—MRCPv2 TLS port |
6076 |
|
Speech Server—SIP TCP port |
5060 |
|
Speech Server—SIP UDP port |
5060 |
|
Speech Server—SIP TLS port |
5061 |
|
Speech Server, call log server—Listening TCP port |
10101 |
|
Speech Server, call log server—Listening TLS port |
10102 |
|
Nuance recognition service |
8200 |
|
Vocalizer | server.nvs.Address | 9200 |
NLP service | server.nlps.serverAddress |
8443 |
Inet proxy ports
When an Inet proxy is used, it uses the following ports by default:
Port |
Parameter |
Default |
---|---|---|
NSS Inet proxy |
1111 |
|
Nuance recognition service proxy |
(empty) |
|
Vocalizer Inet proxy |
8080 |
Natural Language Processing service
The Natural Language Processing service uses the following ports:
Port |
Parameter |
Default |
---|---|---|
Natural Language Processing service |
8443 |
|
Nuance Resource Manager |
9001 |
Krypton engine
The Krypton recognition engine uses the following ports:
Port |
Parameter |
Default |
---|---|---|
HTTPS/WebSocket Secure API port | https : port | 8600 |
When running multiple instances on the same host, each instance will allocate its own port(s). For example, a host running 8 instances will require 8 HTTPS ports (8600, 8610, 8620, and so on).
NLE and NTpE
The Natural Language Engine and the Nuance Text Processing Engine listen for incoming requests, either HTTP or WebSocket, on the following ports:
Port |
Parameter |
Default |
---|---|---|
Natural Language Engine |
9091 |
|
Nuance Text Processing Engine | port | 9092 |
Resource Manager
The resource manager communicates with ZooKeeper, and ZooKeeper itself uses ports:
Port |
Parameter |
Default |
---|---|---|
ZooKeeper listener |
2181 |
|
ZooKeeper servers | server.x (where x is the number of a ZooKeeper server. You configure two ports for each server, for example 2181:3181. Speech Suite has no requirements about the ports you define. See Setting up ZooKeeper. |