Case Studies

Migration to IP-based GSM networks as one of the key directions to decrease cost and increase speed and efficiency of GSM networks. Evolution of Abis interface in order to run TDM traffic over IP (i.e. introduce IP connectivity between BSC and BTS) as one od the steps of the migration.

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A number of developed IMS applications. Summary of features prototyped according tp 3GPP TS 23.401/23.402 chapter 5.3.2.1 (E-UTRAN initial attach). Protocols and components developed according to 3GPP release 10 specifications.

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Outsourcing of networks nodes automation, remote software upgrade operations and the existing functionality improvement.

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Externalization of EMS product testing to MERA, change of the product delivery model.

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Outsourcing of a large part of R&D for GSM element & network management system with a greater R&D efficiency and resources cost saving expected. Several services suppliers were invited to participate in different projects, one of them becoming a strategic supplier based on the results.

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Outsourcing of all R&D operations for GSM EMS node with greater R&D efficiency and resources cost saving expected. Several service suppliers were invited to participate in different projects, one of them becoming a strategic supplier based on the results.

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Outsourcing of GSM networks configuration and monitoring tools activities, design quality improvement in order to increase product stability and fully satisfy users' needs.

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Outsourcing of automated installation, upgrade & maintenance tools development for EMS.

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Outsourcing of sustaining and major part of Enterprise Messaging products R&D with greater R&D efficiency and recources cost saving expected.

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The Customer was interested in performance and support costs optimization of the existing team. Required services:

• On going support activities for unified messaging product, communication with tech support and design,
• 24/7 customer support,
• Dedicated lab,
• Ability to provide patches quickly.

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The customer was dissatisfied with performance and stability of GSM network QoS analysis tools, which were intended to audit QoS of an existing GSM network.

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To sell PBXs on a Russian and some CIS markets, the customer had to implement local legal interception standard (SORM) support in about 6 months with the following requirements:

• This should not broke any of hundreds business grade telephony features,
• Work with local law enforcement agencies on LI details,
• Provide onsite support during PBX certification,
• Provide trial support.

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Porting of AAA product for Solaris 10 SPARC to Linux RHEL x86

• 1^st phase: to make the product compileable,
• 2^nd phase: troubleshoot and correct product behavior and performance.

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EMS for GSM Access requires significant effort for software verification, especially for non-regression testing, manual testing makes product development stages longer and more costly. The main challenge was to reduce non-regression tests execution time and human resources, as well as minimize human errors using fully automated product test suite.

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