Aktarul Hossain Email & Phone Number

Dhaka, Bangladesh

•Operation, maintenance and troubleshooting experience of VOIP(SIP, H.323, SS7 protocol) via Signaling analysis in iTel switch plus and SBC softswitch. •Worked with IOF/IOS/ICX/ANS/IPTSP concerns and identified the issues, analyzed information and provided solutions. •Operation and maintenance of NGN equipment (SBC Soft Switch, Dell server: Power Connect 6248, CISCO Router, MUX: Tejaj -TJ100ME, Media-Gateway: Nuera GX-8K. •Exception handling and maintenance of SMS traffic (SMPP, HTTP). IP trace monitoring & analysis. •Managing and maintaining A2P Bulk SMS systems,Campaign generated for Masking & non masking, making route and rateplan as per requirements. •Operation and maintenance IPTSP and IP PBX core system,CRM billing and Gateways.•Installation and configured Asterisk, Issabel, Elastix PABX Servers.•Backing up and restoring MySQL databases and check traffic logs of soft-switch, media and signaling servers.•Level-3 support, highest priority trouble ticket handling, fault recognition, troubleshooting and co-ordination with the carriers/operators. •Conducting training for the Jr. NOC engineers and monitoring their activities, Assigned different types of reporting & monitoring related work to NOC with proper load balancing.

Dhaka, Bangladesh

1. Configure inbound and outbound traffic in SBC Switch.2. Coordinating with Vendors, International carriers, Service Providers for implementation and operational issues through Call trace, Graph &Signaling Trace analysis and modification of codec.3. Monitoring Data communication system, transmission network distribution over IPLC and local leased lines.4. Alarm monitoring and analysis for all equipment like Soft switch, Media Gateway, Signaling Gateway as well as router and L3 switch.5. Provisioning, IP assignment, core network configuration, monitoring and graphing for colocation, leased lines, customer backup and other customer network services.6. Quality control by analyzing CDRs and Cause Codes. Taking daily and weekly back up of different nodes.7. Communicate with other IGW/ICX operators and Upstream for Escalation & Resolution of the faults.8. Monitor IPLC bandwidth usages and connectivity by ping monitoring and MRTG.9. Analyze trunk utilization, distribution and quality of traffic, ASR, CER, ACD, Congestion, PDD and QoS.

Dhaka, Bangladesh

1. Planning and implementation international incoming and outgoing traffic route based on least cost,Monitoring traffic's status of ASR, ACD, QoS and bandwidth.2. Generating reports for alarm/fault analysis of the equipment. Fault handling and escalation.3. Troubleshooting and maintaining traffic distribution among different carriers and ICX routes.4. Trace analysis SIP/ISUP log.5. Quality control by analyzing CDRs and cause code.6. Traffic analysis, capacity planning, optimization of existing node.