Subscriber trunk dialling

Typical signboards of STD booths (kiosks from where STD calls can be made) in India

Subscriber trunk dialling (STD, also known as subscriber toll dialling) is a telephone system allowing subscribers to dial trunk calls without operator assistance. The term was introduced when it first became possible for long-distance calls to be dialled directly, and is now rarely used where calls to any destination can be dialled.

单词	Subscriber trunk dialling
释义	Subscriber trunk dialling 英语百科 Subscriber trunk dialling Subscriber trunk dialling (STD, also known as subscriber toll dialling) is a telephone system allowing subscribers to dial trunk calls without operator assistance. The term was introduced when it first became possible for long-distance calls to be dialled directly, and is now rarely used where calls to any destination can be dialled.
随便看	cancellation money的意思 cancellation network的意思 cancellation notice的意思 cancellation notices的意思 cancellation of a charter的意思 cancellation of a contract的意思 cancellation of adoption的意思 cancellation of agreement的意思 cancellation of a lease的意思 cancellation of a lost instrument的意思 cancellation of a policy的意思 cancellation of a tariff的意思 cancellation of authorization to use的意思 cancellation of balances of accounts的意思 cancellation of bill of exchange的意思 cancellation of business licence的意思 cancellation of contract的意思 cancellation ofcontract的意思 Cancellation of Contract of Carriage of Passengers by Sea的意思 cancellation of document的意思 cancellation of doucment的意思 cancellation of franchise的意思 cancellation of future performance的意思 cancellation of household registration的意思 cancellation of indebtedness的意思