TROUBLESHOOTING GUIDE
Ascom Myco 3
Ports
Appendix B Ports
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 Direction Port Number
UDP Outgoing UDP:5060 (set by default)
Incoming UDP:5060 (set by default)
TCP Outgoing TCP: Any free port
Incoming TCP:5060
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 Direction Port Number
DNS UDP Outgoing 53
DHCP UDP Outgoing 68
NTP UDP synchronization Outgoing 123
RPCAP TCP Incoming 2002
TD 93297EN / 19 December 2019 / Ver. B 55
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