Something

SIP REG USER 1
--- address   - 01unit1@192.168.42.9
--- auth user - 
--- contact   - sip:01@192.168.42.4
--- state     - unregistered   (user 1)
--- TTL       - 0 seconds
SIP REG USER 2
--- address   - 02unit1@192.168.42.9
--- auth user - 
--- contact   - sip:02@192.168.42.4
--- state     - unregistered   (user 2)
--- TTL       - 0 seconds
SIP REG USER 3
--- address   - 03unit1@192.168.42.9
--- auth user - 
--- contact   - sip:03@192.168.42.4
--- state     - unregistered   (user 3)
--- TTL       - 0 seconds
SIP REG USER 4
--- address   - 04unit1@192.168.42.9
--- auth user - 
--- contact   - sip:04@192.168.42.4
--- state     - unregistered   (user 4)
--- TTL       - 0 seconds
SIP REG USER 5
--- address   - 05unit1@192.168.42.9
--- auth user - 
--- contact   - sip:05@192.168.42.4
--- state     - unregistered   (user 5)
--- TTL       - 0 seconds
SIP REG USER 6
--- address   - 06unit1@192.168.42.9
--- auth user - 
--- contact   - sip:06@192.168.42.4
--- state     - unregistered   (user 6)
--- TTL       - 0 seconds
SIP REG USER 7
--- address   - 07unit1@192.168.42.9
--- auth user - 
--- contact   - sip:07@192.168.42.4
--- state     - unregistered   (user 7)
--- TTL       - 0 seconds
SIP REG USER 8
--- address   - 08unit1@192.168.42.9
--- auth user - 
--- contact   - sip:08@192.168.42.4
--- state     - unregistered   (user 8)
--- TTL       - 0 seconds
SIP REG USER 9
--- address   - 09unit1@192.168.42.9
--- auth user - 
--- contact   - sip:09@192.168.42.4
--- state     - unregistered   (user 9)
--- TTL       - 0 seconds
SIP REG USER 10
--- address   - 10unit1@192.168.42.9
--- auth user - 
--- contact   - sip:10@192.168.42.4
--- state     - unregistered   (user 10)
--- TTL       - 0 seconds