busy out dial peers

[Sarafianl1980]

Hi All,

We keep experiencing random bad call quality on one of our dial peer's and noticed this is in the logs: 

%SIP-5-DIALPEER_STATUS: VoIP dial-Peer <3002> is Busied out
020026: Feb 2 03:06:05.008 GMT: %SIP-5-DIALPEER_STATUS: VoIP dial-Peer <3002> is Up
020027: Feb 2 03:21:06.056 GMT: %SIP-5-DIALPEER_STATUS: VoIP dial-Peer <3002> is Busied out
020028: Feb 2 03:25:08.079 GMT: %SIP-5-DIALPEER_STATUS: VoIP dial-Peer <3002> is Up
020029: Feb 2 03:31:09.092 GMT: %SIP-5-DIALPEER_STATUS: VoIP dial-Peer <3002> is Busied out
020030: Feb 2 03:34:10.616 GMT: %SIP-5-DIALPEER_STATUS: VoIP dial-Peer <3002> is Up

dial-peer voice 3002 voip
description OUTBOUND Voice SIP 
translation-profile outgoing OB-zoom-with-prefix
destination-pattern zzz
session protocol sipv2
session target ipv4:zzz
session transport udp
voice-class codec 1
voice-class sip options-keepalive up-interval 180 down-interval 60 retry 2
voice-class sip bind control source-interface Loopback4
voice-class sip bind media source-interface Loopback4
voice-class sip midcall-signaling passthru media-change
dtmf-relay rtp-nte
ip qos dscp cs3 signaling
no vad

Any idea what this could be please?

[TONY SMITH · Accepted solution]

Network problem between the gateway and that dial-peer's session target.  This is the options keepalive in action, it's polling the session target and if the poll fails it takes the dial-peer offline.