TROUBLESHOOTING GUIDE
Ascom Myco 3
Appendix B
This appendix lists the TCP and UDP ports the handset listens on for incoming and outgoing traffic.
B.1
SIP
The following port numbers are configurable:
Protocol
UDP
TCP
B.2
Voice Traffic
For a voice connection, one RTP and one RTCP port are used. A call therefore uses two free UDP ports
selected from the RTP port range. The RTP port range is, by default, from 16384 to 32767. The port range is
then used for SIP calls.
B.3
Google Mobile Services
For additional details on available ports, please refer to Android documentation.
B.4
Other Services
Protocol
DNS UDP
DHCP UDP
NTP UDP synchronization
RPCAP TCP
TD 93297EN / 19 December 2019 / Ver. B
Ports
Direction
Outgoing
Incoming
Outgoing
Incoming
Direction
Outgoing
Outgoing
Outgoing
Incoming
Port Number
UDP:5060 (set by default)
UDP:5060 (set by default)
TCP: Any free port
TCP:5060
Port Number
53
68
123
2002
Ports
55
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