Hangup Codes

When calls disconnect, Plivo returns hangup codes to help identify the cause.

Hangup Sources

Source	Description
Customer	Hangup initiated by your infrastructure
Carrier	Hangup initiated by the remote carrier
Zentrunk	Hangup initiated by Plivo

Code	Cause	Solution
4030	Insufficient credits	Add credits to your account
4190	Unknown caller ID	Use a Plivo-rented number as caller ID
4590	India media anchoring violation	Ensure server is located in India for India calls. See Calling in India.
5180	CPS limit reached	Contact support to increase limits
5190	Concurrent call limit exceeded	Contact support to increase limits

For the complete list of 60+ hangup codes with detailed descriptions, see Zentrunk Hangup Codes.

Debug logs help troubleshoot connectivity issues during SIP trunking calls. Access them in the Plivo Console under Zentrunk → Logs.

Section	Information
Call Details	Initiation time, from/to numbers, duration, charges, STIR attestation
Call Stats	Trunk ID, domain, transport protocol, hangup cause/source
SIP Logs	Final SIP response, negotiated codec, downloadable SIP PCAP

For detailed information on interpreting debug logs, see Zentrunk Debug Logs.