{'fraction_non_alphanumeric': 0.02553626149131767, 'fraction_numerical': 0.0, 'mean_word_length': 5.490066225165563, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
A Programmable Context-aware Voice Service

This paper presents a programmable context-aware voice (CAV) service, which enables VoIP services to cope in crisis situations. To prevent the upsurge in traffic normally associated with a crisis from degrading the quality of service for privileged users like emergency workers, the CAV service prevents nonprivileged users from accessing the network during a crisis. This service is built upon the CONTEXT platform, an innovative middleware designed for the creation, deployment and management of context-aware services. The platform consists of a programmable layer, a context-aware service engine and a policy-based service layer. The voice services in the CAV are provided by a session initiation protocol (SIP) platform called Siptrex. The result is an easily customised, flexible and scalable context-ware service, which suppresses, non-essential traffic during crisis situations allowing greater bandwidth for essential traffic.