53822
Note that this should not be confused with the pre-VOIP ' Voice VPN ' deployed by routing calls intelligently in a TDM switching platform , often Nortel DMS100 and customers PBX nodes .
 Nortel
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Nortel