Could anyone tell me what happened here - we lost all active calls around this time. I've included more detail below. Jul 15 14:16:20 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: ACK received for '1' outside of window of '0' to '0', restarting Jul 15 14:16:20 WARNING[4225] chan_zap.c: No D-channels available! Using Primary on channel anyway 16! Jul 15 14:16:20 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: !! Got S-frame while link down Julian. Jul 15 14:14:28 WARNING[4225] interface.c: Junk at the beginning of frame 49443302 Jul 15 14:14:28 WARNING[4225] interface.c: Junk at the beginning of frame 49443302 Jul 15 14:14:35 WARNING[4225] interface.c: Junk at the beginning of frame 49443302 Jul 15 14:14:40 WARNING[4225] chan_sip.c: Maximum retries exceeded on call 0f84452f7f9b5fd65635cf983c197666@192.168.6.10 for seqno 105 (Non-critical Response) Jul 15 14:14:40 WARNING[4225] chan_sip.c: Maximum retries exceeded on call 013924b734a944ec640bb9353eb45092@192.168.6.10 for seqno 101 (Non-critical Response) Jul 15 14:15:10 WARNING[4225] interface.c: Junk at the beginning of frame 49443302 Jul 15 14:15:10 WARNING[4225] channel.c: Avoided initial deadlock for '0xbe7128b0', 10 retries! Jul 15 14:15:49 WARNING[4225] interface.c: Junk at the beginning of frame 49443302 Jul 15 14:16:18 WARNING[4225] channel.c: Avoided initial deadlock for '0xbe718608', 10 retries! Jul 15 14:16:18 WARNING[4225] channel.c: Avoided initial deadlock for '0xbe718608', 10 retries! Jul 15 14:16:18 WARNING[4225] channel.c: Avoided initial deadlock for '0xbe718608', 10 retries! Jul 15 14:16:18 WARNING[4225] channel.c: Avoided initial deadlock for '0xbe7128b0', 10 retries! Jul 15 14:16:18 WARNING[4225] channel.c: Avoided initial deadlock for '0xbe7128b0', 10 retries! Jul 15 14:16:19 WARNING[4225] channel.c: Avoided initial deadlock for '0xbe7128b0', 10 retries! Jul 15 14:16:20 WARNING[4225] channel.c: Avoided initial deadlock for '0xbe7128b0', 10 retries! Jul 15 14:16:20 WARNING[4225] channel.c: Avoided initial deadlock for '0xbe7128b0', 10 retries! Jul 15 14:16:20 WARNING[4225] channel.c: Avoided initial deadlock for '0xbe7128b0', 10 retries! Jul 15 14:16:20 WARNING[4225] chan_zap.c: No D-channels available! Using Primary on channel anyway 16! Jul 15 14:16:20 WARNING[4225] app_dial.c: Unable to forward voice Jul 15 14:16:20 WARNING[4225] app_dial.c: Unable to forward voice Jul 15 14:16:20 WARNING[4225] channel.c: Avoided initial deadlock for '0xbe7128b0', 10 retries! Jul 15 14:16:20 WARNING[4225] channel.c: Avoided initial deadlock for '0xbe7128b0', 10 retries! Jul 15 14:16:20 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: ACK received for '1' outside of window of '0' to '0', restarting Jul 15 14:16:20 WARNING[4225] chan_zap.c: No D-channels available! Using Primary on channel anyway 16! Jul 15 14:16:20 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: !! Got S-frame while link down Jul 15 14:16:20 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: !! Got S-frame while link down Jul 15 14:16:21 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: !! Got S-frame while link down Jul 15 14:16:21 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: !! Got I-frame while link state 2 Jul 15 14:16:21 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: !! Got S-frame while link down Jul 15 14:16:21 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: !! Got S-frame while link down Jul 15 14:16:21 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: !! Got I-frame while link state 2 Jul 15 14:16:21 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: !! Got S-frame while link down Jul 15 14:16:21 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: !! Got I-frame while link state 2 Jul 15 14:16:21 WARNING[4225] chan_zap.c: [Span 0 D-Channel 0] PRI: !! Got I-frame while link state 2 Jul 15 14:16:21 WARNING[4225] channel.c: Avoided initial deadlock for '0x94b4210', 10 retries! Jul 15 14:16:21 WARNING[4225] channel.c: Avoided initial deadlock for '0x94b4210', 10 retries! Jul 15 14:16:21 WARNING[4225] channel.c: Avoided initial deadlock for '0x94b4210', 10 retries! Jul 15 14:16:21 WARNING[4225] channel.c: Avoided initial deadlock for '0x94b4210', 10 retries! Jul 15 14:16:21 WARNING[4225] channel.c: Avoided initial deadlock for '0x94b4210', 10 retries! Jul 15 14:16:21 WARNING[4225] channel.c: Avoided initial deadlock for '0x94b4210', 10 retries! Jul 15 14:16:21 WARNING[4225] channel.c: Avoided initial deadlock for '0x94b4210', 10 retries! Jul 15 14:16:21 WARNING[4225] channel.c: Avoided deadlock for '0xbe716e10', 10 retries! Jul 15 14:16:21 WARNING[4225] channel.c: Avoided deadlock for '0xbe716e10', 10 retries!