[SOLVED] Suddenly queue agents phones not ringing - SIP/2.0 400 Bad Request

FreePBX
1

hi all,

from one day to the other this problem occured:

our main telephone number gets in IVR, Clients select a number and gets into the chosen queue.

But the phone of the agents arent ringing anymore, i have not changed hardware or software, it just stopped working.

For everey phone that is not ringing there is this error message in console:

[2017-04-04 16:22:03] ERROR[3206]: pjproject:0 <?>: sip_endpoint.c Error processing packet from 192.168.2.53:5060: Missing required header(s) (PJSIP_EMISSINGHDR) CSeq [code 171050]:
SIP/2.0 400 Bad Request
Via: SIP/2.0/UDP 192.168.2.36:5060;rport=5060;branch=z9hG4bKPjz0QKzZwsScnAmkjzWhFM9lz2EzimOepA
User-Agent: N510 IP PRO/42.238.00.000.000
Content-Length: 0
– end of packet.

outbound calls working fine, direct inbound calls to the agents are working fine.

Please can somebody help me?

regards
Gonz

2

Hey,

the problem was caused by our CID Lookup Source.

The provider changed sonething, dont know what, yet.

I deactivated the CID Lookup Source, and all is working again.

Gonz

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