Islam Aboayana

Voice & VoIP Operations and Financial Management specialist with over 15 years of professional experience in accounting and financial management, combined with more than 10 years of hands-on experience in operating and managing voice communication systems and international voice traffic. Experienced in Sippy Switch with practical experience in VOS3000 and other switching platforms, with full responsibility for customer and vendor management, SIP Trunk configuration, Voice Routing, Tariffs, Buy & Sell Rates, Profit Margins, Credit Limits, Capacity, and Failover. Strong experience in monitoring and analyzing CDR, ASR, ACD, and PDD, tracing end-to-end call flows, analyzing SIP response codes, and troubleshooting connectivity and voice quality issues.

Experienced in Route and Vendor testing, Backup Routing, International Voice Traffic management, and direct communication with customers and service providers through issue resolution. Also possess extensive experience in financial and accounting management, including full accounting cycle management, financial statements and reporting, cost and expense analysis, cash flow management, accounts receivable and payable, internal controls, and team management, with experience in Microsoft Excel, Odoo ERP, and accounting systems.

Voice / VoIP Operations & Management Specialist

• Full operational management of the Sippy Switch platform and Voice operations through the system interface.
• Managed Customers & Vendors, including account setup and operational requirements.
• Created and managed SIP Trunks and configured SIP Credentials according to connectivity requirements.
• Configured and modified Voice Routing, including Primary and Backup Vendors.
• Managed both Automatic and Manual Failover, rerouting voice traffic when issues occurred.
• Managed Time-Based Routing according to operational requirements and traffic patterns.
• Managed Buy Rates, Sell Rates, and Tariffs, reviewing rates according to traffic volume and route demand.
• Monitored Profit Margins and aligned Vendor costs with customer selling rates.
• Managed Credit Limits and monitored customer usage according to agreed terms.
• Managed Concurrent Calls / Capacity for customers and service providers.
• Configured and managed Whitelists for numbers and minutes.
• Monitored daily voice traffic and key performance indicators, including ASR / ACD / PDD.
• Analyzed CDRs and traced calls from the customer through the Sippy, Route, Vendor, and GoIP to the final destination.
• Analyzed SIP Response Codes to identify the point and source of failures.
• Diagnosed One-Way Audio, No Audio, Echo, call drops, and poor voice quality issues.
• Tested connectivity to GoIP devices and switches to identify the source of connectivity issues.
• Tested Routes and Vendors using a Dialer across multiple destinations before deployment.
• Evaluated Vendors based on pricing, performance, quality, and stability, and selected Primary and Backup Vendors accordingly.
• Utilized Backup Vendors to maintain service continuity during outages and service disruptions.
• Performed operational management of GoIP, SIM Bank, and eJoin devices within the Voice environment.
• Communicated directly with customers and Vendors to identify issues, implement solutions, and follow up through resolution.
• Managed International Voice Traffic and responded promptly to service-impacting issues.
• Followed up on open issues, retested services after resolution, and verified traffic stability.
• Provided training and knowledge transfer on system operations, Routing, performance indicators, and troubleshooting procedures.
• Worked with VOS3000 and another switching platform as part of practical Voice operations experience.

Accounts Manager | Data Entry Supervisor at Smart Restaurant Chain (2022 – Present)

• Manage daily accounting operations across all branches.
• Prepare monthly and annual financial statements.
• Analyze costs and monitor expenses.
• Prepare financial performance reports for senior management.
• Manage cash flow operations.
• Supervise the accounting team.
• Manage the data entry team.
• Ensure the accuracy and integrity of financial data.
• Develop reporting and monitoring procedures.
• Manage accounts receivable and payable.
• Ensure compliance with applicable tax regulations.

Account Manager at Lama Egypt Mattresses and Furniture Company (2018 – 2022)

• Managed general accounting operations.
• Prepared year-end financial statements.
• Analyzed profit and loss.
• Managed banking transactions and reconciliations.

Account Manager at Outstanding Import & Export Company (2013 – 2018)

• Managed accounting and financial operations.
• Monitored and analyzed financial performance.
• Managed financial transactions related to import and export activities.

Accountant at Sprint Tech Computer Services (2011 – 2013)

• Recorded daily accounting entries.
• Prepared financial reports.
• Managed customer and supplier accounts.

Data Entry | Manager of the Data Entry Department at Taiba Computer Services (2007 – 2011)

• Managed the data entry team.
• Reviewed reports and analyzed data.
• Improved work procedures.
• Entered accounting data.
• Prepared periodic reports.

Accounting Professional at Al Shamar Dairy Products Company (2005 – 2007)

• Recorded financial transactions.
• Monitored inventory.
• Prepared payroll sheets.

Freelance Professional (2022 – Present)

• Professional CV and resume design.
• Basic graphic design.
• Providing services through online platforms.

Bachelor's Degree in Computers and Information – Management Information Systems – Higher Institute for Computers, Information & Management Technology (2011)