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Published in:
2013 | OriginalPaper | Chapter
Outbound Call Route Selection on IP-PBX Using Unstructured Supplementary Service Data
Authors : Kittipong Suwannaraj, Sirapat Boonkrong
Published in: The 9th International Conference on Computing and InformationTechnology (IC2IT2013)
Publisher: Springer Berlin Heidelberg
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Selecting the outbound call route on IP-PBX phone system using Fixed Channel Technique and Pattern Matching has been found that both methods are not able to choose the outbound route through mobile phone service providers, and cause high traffic between GSM network operators. Therefore, this research proposed a using of Unstructured Supplementary Service Data or USSD technique. The experiment was carried out by using Asterisk Server as an IP-PBX system, which was connected with Sim3000CZ Micro Controller board to select the route. The results of this research show that this method can select the outbound call route correctly and efficiently as well as reduce the traffic between the networks. Furthermore, it can greatly reduce the overhead when calling an external network. Therefore, we claim that this is a more suitable technique for the call route selection.