GL Announces MAPS™ SIP-I (Session Initiation Protocol with ISUP)
Gaithersburg, MD (PRWEB) August 23, 2011
GL Communications Inc. announced today the release of its latest product MAPS™ SIP-I , an advanced protocol simulator/tester for SIP-ISUP simulation over IP. And also can simulate SIP signaling with encapsulated ITU/ANSI/ETSI ISUP messages. Addressing a press conference, Mr. Karthik Ramalingam Project Manager at GL said, “VoIP networks predominantly use SIP to setup and tear down voice calls and increasingly for video and multimedia calls. PSTN networks predominantly use SS7 to do the same. PSTN SS7 signaling is quite different from SIP signaling and in many cases PSTN SS7 signaling may be richer than SIP. There may be no one-to-one correspondence between SIP signaling messages and SS7 signaling messages. Also, it may not be possible to enhance SIP to accommodate the additional features of SS7, and vice-a-versa.”
He added, “Another consideration, the mobile network uses SS7 signaling througout and is evolving to an all IP network, hence it is advantageous to transport voice using SIP with SS7 routing capabilities intact - thus the need for SIP to SS7 interworking. The basic SS7 messaging is shown in the first picture. When a SIP-I is used to bridge the SS7 endpoints, the ISUP messages are carried (encapsulated) along with SIP signaling messages – also shown in the picture provided below.”
Mr. Ramalingam further added, “As shown in the second picture, the ingress gateway, the IP Network, and the egress gateway provide a bridge for the SS7 signaling and traffic. SIP-I provides a framework for the integration of ISUP within SIP. The ingress and egress gateways, at the point of interconnection provide the SS7 ISUP message encapsulation and vice a versa. RTP is used to carry voice traffic as usual within the SIP network from gateway to gateway.”
He added, “GL’s Message Automation & Protocol Simulation™ (MAPS™) product with SIP-I provides only the IP side of the Gateway at both ingress and/or egress depending on what one is trying to emulate. In general, MAPS™ is a powerful Protocol Test platform, supporting a wide range protocols including TDM , IP, and Wireless infrastructure protocols.
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And also can simulate SIP signaling with encapsulated ITU/ANSI/ETSI ISUP messages. Addressing a press conference, Mr. Karthik Ramalingam Project Manager at GL said, “VoIP networks predominantly use SIP to setup and tear down voice calls and
And also can simulate SIP signaling with encapsulated ITU/ANSI/ETSI ISUP messages. Addressing a press conference, Mr. Karthik Ramalingam Project Manager at GL said, "VoIP networks predominantly use SIP to setup and tear down voice calls and
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Google has taken reasonable steps to improve its privacy policies, the UK's Information Commissioner's Office (ICO) said today, following an audit at the company's London office. The ICO's audit -- which took place in London in July -- was agreed as part of the terms of an undertaking that Google signed in November 2010 after the company reported that its Street View cars had collected Wi-fi payload data alongside the location mapping information that was the stated aim of the project. The audit found that Google has taken action in all of the agreed improvement areas. The ICO has now asked the company to go further to enhance privacy, including ensuring that users are given more information about the privacy aspects of Google products.
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