ADTRAN 220T1 IP Phone User Manual


 
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1. Set “SIP Server Address:” parameter to “IP” and define the IP address given to you by Bandwidth.com.
2. Set “SIP Server Port:” parameter to “5060”.
3. Set the “Dial String Source:” parameter to “Request URI”.
No other parameters require adjustment, leave them at default settings. Scroll to the bottom of the “SIP Registrar
Settings”: