CLASS - VoIP-Info

“CLASS” codes or “VERTICAL SERVICE CODES”

Custom Local Area Signalling Services
Note this list is conforming to US standards – European countries often use different codes (a list can be found where ?) like *21 for call-forward-immediate, *61 for call-forward-on-busy and *31 for termporary-callerid-suppression

See also:

North America (NANPA): https://www.nanpa.com/number_resource_info/vsc_assignments.html
Europe (ETS 300 738): https://www.traficom.fi/fi/
https://bugs.digium.com/bug_view_page.php?bug_id=0000071

ASSIGNMENTS

00 – Inward Voice Activated Services (English)
01 – Inward Voice Activated Services (French)
02 – Deactivation/Activation of In-Session Activation (ISA)on a per line basis
03 – Deactivation of In-Session Activation (ISA) on a per call basis
2X – Reserved for expansion to 3digit VSCs
228 – Over-the-Air Service Provisioning
272 – Access Wireless Priority Service
3X – Reserved for expansion to 3-digit VSCs
40 – Change Forward-To Number for Customer Programmable Call Forwarding Busy Line
41 – Six-Way Conference Calling Activation
42 – Change Forward-To Number for Customer Programmable Call Forwarding Don’t Answer
43 – Drop last member of Six-Way Conference Call
44 – Voice Activated Dialing
45 – Voice Dialing Extended Dial Tone
46 – French Voice Activated Network Control
47 – Override Feature Authorization
48 – Override Do Not Disturb
49 – Long Distance Signal
50 – Voice Activated Network Control
51 – Who Called Me?
52 – Single Line Variety Package (SVP) – Call Hold
53 – Single Line Variety Package (SVP) – Distinctive Ring B
54 – Single Line Variety Package (SVP) – Distinctive Ring C
55 – Single Line Variety Package (SVP) – Distinctive Ring D
56 – Change Forward-To Number for ISDN Call Forwarding
57 – Customer Originated Trace
58 – ISDN MBKS Manual Exclusion Activation
59 – ISDN MBKS Manual Exclusion Deactivation
60 – Selective Call Rejection Activation
61 – Distinctive Ringing/Call Waiting Activation
62 – Selective Call Waiting
63 – Selective Call Forwarding Activation
64 – Selective Call Acceptance Activation
65 – Calling Number Delivery Activation
66 – Automatic Callback Activation
67 – Calling Number Delivery Blocking
68 – Call Forwarding Busy Line/Don’t Answer Activation
69 – Automatic Recall Activation
70 – Cancel Call Waiting
71 – Usage Sensitive Three-way Calling
72 – Call Forwarding Activation
73 – Call Forwarding Deactivation
74 – Speed Calling 8 – Change List
75 – Speed Calling 30 – Change List
76 – Advanced Call Waiting Deluxe
77 – Anonymous Call Rejection Activation
78 – Do Not Disturb Activation
79 – Do Not Disturb Deactivation
80 – Selective Call Rejection Deactivation
81 – Distinctive Ringing/Call Waiting Deactivation
82 – Line Blocking Deactivation
83 – Selective Call Forwarding Deactivation
84 – Selective Call Acceptance Deactivation
85 – Calling Number Delivery Deactivation
86 – Automatic Callback Deactivation
87 – Anonymous Call Rejection Deactivation
88 – Call Forwarding Busy Line/Don’t Answer Deactivation
89 – Automatic Recall Deactivation
90 – Customer Programmable Call Forwarding Busy Line Activation
91 – Customer Programmable Call Forwarding Busy Line Deactivation
92 – Customer Programmable Call Forwarding Don’t Answer Activation
93 – Customer Programmable Call Forwarding Don’t Answer Deactivation
94 – Reserved For Local Assignment
95 – Reserved For Local Assignment
96 – Reserved For Local Assignment
97 – Reserved For Local Assignment
98 – Reserved For Local Assignment
99 – Reserved For Local Assignment

“CLASS” codes or “VERTICAL SERVICE CODES”

See also

Related Posts: