CPC Main Group Additional Only
H04M 2207/00 Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
9 direct subcodes
Child Classifications
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- H04M 2207/08 ISDN systems
- H04M 2207/12 intelligent networks
- H04M 2207/14 cable networks
- H04M 2207/18 wireless networks
- H04M 2207/20 hybrid systems
- H04M 2207/30 third party service providers
- H04M 2207/35 virtual private networks
- H04M 2207/40 terminals with audio html browser
- H04M 2207/45 public-private interworking, e.g. centrex