4.2) Telephony problems with an ISDN / Analog / SIP client as well as other telephony problems (e.g. problems during call setup or terminating calls):
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| name | VOIP-Problems.lcg |
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4.3) Recording a Wireshark trace of the Internet connection as well as from the local network (additionally required):
When the following problems occur an additional Wireshark trace has to be recorded of the Internet connection as well as from the local network, where the SIP user is located. The procedure is described in this Knowledge Base article. - One-sided voice transmission
- Missing voice transmission
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The Wireshark traces have to be recorded with the tool LCOScap as the latency with this tool is lower, than Wireshark traces recorded via WEBconfig! |
5) Sending the gathered information to LANCOM Support:
If the problem cannot be solved with the steps provided in this article, please contact LANCOM Support with the following information:
- Informations regarding the provider and the booked telephony product
- Time, when the error occured
- Involved telephone numbers
- Trace recorded in the error state with the attached trace configuration (*.lct file)
- Current configuration file of the router (*.spf file)
- Additional Wireshark trace in some cases (see step 4.3)
