Go to the Settings screen through the application menu (Fig. 1) and open the Advanced Settings Screen (Fig. 2).
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| Fig. 1 | Fig. 2 |
Check Sip Server and Sip Port
Open the SIP settings and check the SIP server and SIP server port
Check username
Open the SIP settings and check the Username
Check obfuscation
Open the SIP settings and check the obfuscation settings
