| 摘要 |
The present invention relates to method for manually routing calls from a terminal in a first telecommunication network, e.g. an intranet to any terminal in an external telecommunication network, the interworking between said networks taking place through one or more interworking units or so called gateways (GW), and for the purpose of establishing an easy way to tell which type of gateway to route the call to, it is according to the present invention suggested that there is added a prefix, given by the caller in the first telecommunication network, to the called number in the external telecommunication network, to inform the routing means or so-called gatekeeper (GK) in the first telecommunication network which type of gateway (GW) is best suited to handle the call depending on the related resource service level. |
