| 摘要 |
A method is provided for routing an emergency call from Customer Premises Equipment (CPE) to a Public Safety Answering Point (PSAP). The method includes: establishing a session over a packet-switched network (200) between a CPE (110) and a network node (302), such that the CPE (110) accesses a Public Switched Telephone Network (PSTN) (400) from the network node (302) via a telecommunications switch (500) associated with a first PSAP (320) serving a geographic region (300) different than where the CPE (110) is currently located; identifying a telephone number for a second PSAP (120) serving the geographic region (100) in which the CPE (110) is located; and, substituting the identified telephone number for a dialed telephone number when the dialed telephone number is indicative of an emergency call.
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