Enter the following command in your Linux command line, which will start a line trace
-> wanpipemon -i w1g1 -pcap -pcap_file isdn.pcap -prot ISDN -full -systime -c trd
-> w1g1 above represents port 1 on your Sangoma card. If your inbound call will come in on a different port, change w1g1 to wXg1 (replace X with the correct port number. (the linux command ifconfig will show you all the wXg1 interfaces, where X represents the port number)
-> The trace will save a file called isdn.pcap in the local directory that the trace was taken.
- When you press <enter> the line trace will begin, which will look similar to the following output:
- Make an inbound call to reproduce the issue
- Once you have made the inbound call where caller ID is missing, press <enter> to end the line trace
- Open the issnisdn.pcap file in wireshark to analyze if caller ID was received by the telco