Asterisk 100 cpu and no SIP calls

Today the pbx is simply refusing to connect calls to any phones. Everything seems correctly configured and the pbx can send and receive calls via an E1 but calls simply do not flow to phones and cpu usage is above 100%. I have seen load averages over 30 with all the stuck calls. DNS is working and all phones report as available. A core show channels shows all the stuck calls:

Channel Context Extension Prio State Application Data CallerID Duration Accountcode PeerAccount BridgeID
DAHDI/5-1 macro-dial-one s 59 Up Dial PJSIP/1528/sip:[email protected] 5510834437 00:04:40 E1
DAHDI/10-1 macro-dialout-trunk s 26 Up Dial DAHDI/G0/5552654848,300,T 5551302800 00:03:51 E1 E1 73796caa-beff-43fe-a
PJSIP/1423-00000040 func-apply-sipheader s 10 Down Return (Empty) 1423 00:00:37 E1 E1
Local/[email protected] zulu-mobile-phone-pu 901128 1 Ring Stasis zulu-mobile-call-push-pro 9611807869 00:00:00 E1 E1
Local/[email protected] zulu-mobile-phone-pu 901128 1 Down AppDial (Outgoing Line) 901128 00:00:00 E1 E1
PJSIP/2813-0000003b func-apply-sipheader s 10 Down Return (Empty) 2813 00:01:01 E1 E1
PJSIP/2813-0000004c func-apply-sipheader s 10 Down Return (Empty) 2813 00:00:00 E1 E1
Local/[email protected] zulu-mobile-phone-pu 901635 1 Down AppDial (Outgoing Line) 901635 00:00:02 E1 E1
Local/[email protected] zulu-mobile-phone-pu 901635 1 Ring Stasis zulu-mobile-call-push-pro 6671380230 00:00:02 E1 E1
Local/[email protected] zulu-call 901635 5 Ring Dial Local/[email protected] 6671380230 00:00:02 E1 E1
Local/[email protected] zulu-call 112 1 Ringing AppDial (Outgoing Line) 112 00:00:02 E1 E1
Local/[email protected] zulu-mobile-phone-re 901128 1 Ring Stasis zulu-mobile-call-register 9611807869 00:00:00 E1 E1
DAHDI/2-1 macro-dial s 65 Up Dial PJSIP/1128/sip:[email protected] 9611807869 00:01:05 E1
Local/[email protected] zulu-mobile-phone-re 901128 1 Down AppDial (Outgoing Line) 901128 00:00:00 E1 E1
DAHDI/13-1 macro-dial s 65 Up Dial PJSIP/2813/sip:[email protected] 6144294000 00:00:47 E1
Local/[email protected] zulu-mobile-phone-pu 902813 1 Ring Stasis zulu-mobile-call-push-pro 6144294000 00:00:00 E1 E1
Local/[email protected] zulu-mobile-phone-pu 902813 1 Down AppDial (Outgoing Line) 902813 00:00:00 E1 E1
PJSIP/1528-0000003a func-apply-sipheader s 10 Down Return (Empty) 1528 00:01:04 E1 E1
DAHDI/61-1 from-digital 1 Up AppDial (Outgoing Line) 05552654848 00:03:39 E1 E1 73796caa-beff-43fe-a
DAHDI/9-1 macro-dial-one s 59 Up Dial PJSIP/1000/sip:[email protected] 9848033447 00:02:22 E1
Local/[email protected] zulu-mobile-phone-wa 901128 1 Down AppDial (Outgoing Line) 901128 00:00:00 E1 E1
Local/[email protected] zulu-mobile-phone-wa 901128 1 Ring Stasis zulu-mobile-call-wait-pro 9611807869 00:00:00 E1 E1
PJSIP/1403-00000045 func-apply-sipheader s 10 Down Return (Empty) 1403 00:00:21 E1 E1
Local/[email protected] zulu-desktop-phone 901128 1 Ring Stasis zulu-desktop-call-process 9611807869 00:00:00 E1 E1
Local/[email protected] zulu-desktop-phone 901128 1 Down AppDial (Outgoing Line) 901128 00:00:00 E1 E1
PJSIP/1049-0000003d func-apply-sipheader s 10 Down Return (Empty) 1049 00:00:49 E1 E1
Local/[email protected] zulu-mobile-phone-wa 902813 1 Ring Stasis zulu-mobile-call-wait-pro 6144294000 00:00:00 E1 E1
Local/[email protected] zulu-mobile-phone-wa 902813 1 Down AppDial (Outgoing Line) 902813 00:00:00 E1 E1
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Any ideas? Everything is up to date on the server and it had been working fine till today.

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