CPC Subgroup Additional Only
H04M 2203/20 related to features of supplementary services
Full Title
Aspects of automatic or semi-automatic exchanges > related to features of supplementary services
17 direct subcodes
Child Classifications
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- H04M 2203/2005 Temporarily overriding a service configuration
- H04M 2203/2011 Service processing based on information specified by a party before or during a call, e.g. information, tone or routing selection
- H04M 2203/2016 Call initiation by network rather than by subscriber
- H04M 2203/2022 Path replacement
- H04M 2203/2027 Live party detection
- H04M 2203/2033 Call handling or answering restrictions, e.g. specified by the calling party
- H04M 2203/2038 Call context notifications
- H04M 2203/2044 Group features, e.g. closed user group
- H04M 2203/205 Broadcasting
- H04M 2203/2055 Line restrictions
- H04M 2203/2061 Language aspects
- H04M 2203/2066 Call type detection of indication, e.g. voice or fax, mobile of fixed, PSTN or IP
- H04M 2203/2072 Schedules, e.g. personal calendars
- H04M 2203/2077 Call queuing apart from automatic call distribution
- H04M 2203/2083 Confirmation by serviced party
- H04M 2203/2088 Call or conference reconnect, e.g. resulting from isdn terminal portability
- H04M 2203/2094 Proximity
Top Applicants
Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT
- HUAWEI TECHNOLOGIES COMPANY CN 101,476
- QUALCOMM US 101,139
- SAMSUNG ELECTRONICS COMPANY KR 96,655
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
- LG ELECTRONICS KR 55,253
- HUAWEI TECHNOLOGIES COMPANY 54,181
- SONY CORPORATION JP 35,309
- ZTE CORPORATION CN 32,950
- INTEL CORPORATION US 27,533
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498