document: Packet promises past & present -LSB- IP switching -RSB- With the death of the competitive carrier market and the significant slashing of RBOC capex budgets , softswitch vendors have been forced to retrench . Now instead of focusing primarily on limited Internet off-load applications , packet-based softswitches are set to gel around real user needs for services such as voice over IP and IP Centrex
doc_bio_tags: O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I I O B I
extractive_keyphrases: softswitch vendors voice over ip ip centrex