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”:

960 Stewart Drive Sunnyvale, CA 94085 USA Phone +1.408.331.3300 +1.877.80SHORE Fax +1.408.331.3333 www.ShoreTel.com

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ADTRAN 220T1 manual