835
These systems power the front and back office ( BSS/OSS ) and integrate bill ing , customer relationship management ( CRM ) , ordering , self service , digital content delivery , service fulfillment and assurance , and network planning .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None