80206
Hosted PBX services can function over the Public Switched Telephone Network ( PSTN ) , over the Internet ( hosted IP PBX via Internet telephony , or VoIP ( Voice over IP ) , or over a combination of the two .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None