What is the reason for calls dropping at 30 sec ?

What is the reason for calls dropping at 30 sec ?

Most common reason for call drops at 30 sec in a VoIP call lies in the network router or firewall. Below is a brief checklist of common causes of malfunctioning:
  • Most issues are caused by the router having multiple IP addresses and the service provider sending a reply to the wrong IP address.
  • Check that the router/firewall is blocking SIP traffic – you must make sure that the router allows VoIP traffic. With some routers you need to disable the SIP/ALG field to allow VoIP traffic.
  • Check also that the right IP address has been entered for mapping the router i.e. the router is not programmed correctly to send the VoIP traffic to the PBX and is sending the VoIP traffic to the wrong machine.


The best way is to restart the router or firewall. Following articles will help you understand the issue and resolve - 
  1. https://stackoverflow.com/questions/27614532/sip-call-drop-after-30seconds
  2. https://voipstudio.com/blog/causes-and-solutions-to-voip-call-drops/
  3. Video: https://www.youtube.com/watch?v=UIInnaDC7tM

    • Related Articles

    • Where to find the call status codes in the calls page ?

      Our 'Calls' section gives comprehensive information about call history. This section provides you details of successful calls as well as failed calls. Along with call history, we also give call status (Answered/Busy/Failed/NoAnswer), we also provide ...

    • How can I download call recordings?

      Follow these quick and easy steps to generate downloads for call recordings. Go to 'Calls' page and filter the data you wish to download. You can filter the data by Number, Date, Call status, Call type, Caller ID, Display name and Agent name. In the ...

    • What are the basics of Calls page?

      The Calls tab has been built with the intention of giving you a simple yet easy way to monitor your call activities. We offer you multiple filters so you can find the data you are looking for easily. 1. Log-in to your account at app.moitele.com. 2. ...

    • How to add/remove a call disposition in the call module?

      Call Disposition in the Moitele User portal refers to the categorisation of leads generated from the outcome of an inbound or outbound call. Follow these steps to add call disposition to the calls. 1. Login to the admin account in the user portal. 2. ...

    • How do I use the Calls module to monitor my agent's calling activity?

      You can Filter using Numbers, Time Stamp, Agent, Status and Call Type. This is an excellent tool to measure performance. the ‘Numbers’ filter helps you filter the data based on dialed numbers. ‘Call Status’ filters will generate results on these ...