Scrap that am now seeing more in the logs have pasted below
[8] 2007/07/12 11:26:50: Last message repeated 6 times
[5] 2007/07/12 11:26:50: Registration on trunk 4 (4718206) failed. Retry in 60 seconds
[8] 2007/07/12 11:27:20: DNS: dns_a sipgate.co.uk expired
[8] 2007/07/12 11:27:50: Resolve destination 19: url sip:sipgate.co.uk:5061
[8] 2007/07/12 11:27:50: Resolve destination 19: a udp sipgate.co.uk 5061
[8] 2007/07/12 11:27:50: DNS: Add dns_a sipgate.co.uk 217.10.79.23 (ttl=3566)
[8] 2007/07/12 11:27:50: Resolve destination 19: a udp sipgate.co.uk 5061
[8] 2007/07/12 11:27:50: Resolve destination 19: udp 217.10.79.23 5061
[8] 2007/07/12 11:27:50: Trunk 4 (4718206) has outbound proxy udp:217.10.79.23:5061
[8] 2007/07/12 11:27:50: Resolve destination 20: url sip:sipgate.co.uk:5061
[8] 2007/07/12 11:27:50: Resolve destination 20: a udp sipgate.co.uk 5061
[8] 2007/07/12 11:27:50: Resolve destination 20: udp 217.10.79.23 5061
[8] 2007/07/12 11:27:50: Send Packet REGISTER
[8] 2007/07/12 11:28:20: Last message repeated 6 times
[5] 2007/07/12 11:28:20: Registration on trunk 4 (4718206) failed. Retry in 60 seconds