Method for providing supplementary services to a mobile station by sending DTMF tones to a remote party of an active call
First Claim
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1. A signalling method for a radiocoinmunication system having a mobile station and a network comprising the steps of:
- establishing an active call and a held call between said mobile station and said network;
transmitting a signal from said mobile station to said network requesting that DTMF tones be transmitted;
detecting, in said network, that said mobile station has a call on hold; and
interpreting, in said network, said signal as a request to send DTMF tones to a remote party associated with said active call; and
sending DTMF tones to said remote party associated with said active call rather than to a remote party associated with said call on hold.
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Abstract
Methods and systems for signalling between a mobile station and a network for requesting supplementary services are disclosed. The network implicitly assumes that signals from a mobile station relate to either a held or active call or that a second action is required after the requested action is performed so that the complexity of the mobile unit can be reduced.
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Citations
1 Claim
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1. A signalling method for a radiocoinmunication system having a mobile station and a network comprising the steps of:
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establishing an active call and a held call between said mobile station and said network;
transmitting a signal from said mobile station to said network requesting that DTMF tones be transmitted;
detecting, in said network, that said mobile station has a call on hold; and
interpreting, in said network, said signal as a request to send DTMF tones to a remote party associated with said active call; and
sending DTMF tones to said remote party associated with said active call rather than to a remote party associated with said call on hold.
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Specification