Yealink SIP-T2 SERIES Administrator's Manual page 798

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
Details of Configuration Parameters:
account.X.alert_info_url_enable
Description:
Enables or disables the IP phone to download the ring tone from the URL contained
in the Alert-Info header for account X.
0-Disabled
1-Enabled
X ranges from 1 to 16 (for SIP VP-T49G/SIP-T48G/T46G/T29G)
X ranges from 1 to 12 (for SIP-T42G)
X ranges from 1 to 6 (for SIP-T41P/T27P)
X ranges from 1 to 3 (for SIP-T40P/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
X is equal to 1 (for SIP-T19(P) E2/CP860)
Web User Interface:
Account->Advanced->Distinctive Ring Tones
Phone User Interface:
None
features.alert_info_tone
Description:
Enables or disables the IP phone to map the keywords in the Alert-info header to the
specified Bellcore ring tones.
0-Disabled
1-Enabled
Web User Interface:
None
Phone User Interface:
None
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Parameters
et?m=mod_data&p=settings-ri
ng&q=load
Permitted Values
0 or 1
0 or 1
Default
1
0