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B-8
Typical SIP Phone Bootup Log (continued)
>DNS req:000f66fc9e72
ls.tftp.vonage.net
<DNS response
192.015.192.015
// the phone looks up the FTP file server
// the DNS server responds with the IP address
>TFTP file request
/uObE8NkRvq/spa000F66FC9
REGISTER sip:atlas4.atla
200 OK
REGISTER sip:atlas4.atla
200 OK
// the phone downloads its operating file
// the phone sends periodic heartbeat registration
// the gateway responds