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Asterisk Call Failed – 488 Not Acceptable Here

Asterisk Call Failed – 488 Not Acceptable Here. How to fix 488

Problem Description: When the user makes call by the SIP trunk with his Cloud PBX, the call failed.

AnalysisThee PCAP log shows the provider returned the error response – 488 Not Acceptable Here.

The SDP in the INVITE of Cloud PBX sent indicated that it used SRTP.See the a=crypto:1 AES_CM_128………..

Solution: Disable the SRTP option in the SIP trunk settings.

Or change the current system to support codecs G711u, G711a

Related Posts: Thông số trong Queue Asterisk – Quản trị tổng đài Voip asterisk.

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