Istanbul, Istanbul, Türkiye
- Expertise in various new and existing Telephony/VoIP protocols like SS7, SIP, SIP-I/SIP-T, SDP, H323, ENUM, RTP/RTCP, MEGACO/MGCP, RADIUS, Diameter, IPSec , IMS, DPI - Specialist in Unix and Linux (SuSE, RedHat, CentOS) operating systems - Expertise on different network elements such as Soft Switches, Session Border Controllers, Media Gateways, proxy servers, OSS, and BSS, Application Server and Class5 Servers. - Experience on NFV (Vmware, Kvm, Openstack, Openshift, Kubernetes) - Experience with Database (MySQL, PostgreSQL, Couchbase, MongoDB) - Experience with scripting (Bash, python) - Expertise on NMS systems such as OpenNMS, Solarwinds, Cacti, Orion, PRTG. - Expertise with VoIP test tools (SIPp) and equipment such as IP-PBXs (Asterisk), Class5 Servers (Pactolus), SIP phones (Hard Phones and Softclients), Wireshark/TCPDump, Hammer - Experience with Juniper Netscreen firewalls, switches, TCP/IP, BGP protocols - Excellent troubleshooting and debugging skills on Genband, Sonus, Dialogic (Cantata), Telcobridge, SipHIVE (Pactolus) - Experience with Deep Packet Inspection (Affirmed Networks) - Experience with SIP Redirect Server (Verscom ODINE VRS) - Experience with Billing, BSS/ OSS (Springboard, Verscom ODINE) - Experience with DHCP, DNS, Mail Servers, Proxy, FTP, NFS servers
-VNF deployment and management -Heat template creation -Stack creation and management -Design Openstack deployment -Design Openshift deployment
- Deployment, Management, Training, Support (Level 3) of Genband S3/RSM (fromerly Nextone), Genband C3/G9, Sonus, Dialogic (formerly Cantata), Pactolus, SipHive , Telcobridge, Metaswitch products to various countries located at Europe, Middle East, Africa, Asia and America. - Worldwide VoIP (MSC, SBC, Media Gateway, Class 5 Switch / BBTel, Callback, Calling Card, Wholesale Traffic) design, integration and support - Flagging the critical network problems immediately on the system. - Provide remote & on-site support - Provide technical support to troubleshoot and solve highly complex issues involving multi-protocol call flows (SIP, H323 Suite) and inter-operability within VoIP Networks - Manage critical customer issues and facilitate communication between customers, escalation, and Vendor. - 24x7 On Call availability when assigned and handle support calls with minimal delay. - If required, prepare acceptance tests; upgrade plans and agreement demands regarding the product features. - Performing new release upgrades and installations, applying patches - Reproducing field issues in carrier simulated lab environments and escalating bugs to vendor. - Create network Architecture diagrams (VoIP specific), Customer Acceptance test plans and execute them independently and/or with customers/partners for trials and certifications - Design, Implementation and Administration of Customer Network - NMS systems admin - Demos, trainings are given at onsite or remotely - Interconnections with International ITSPs - Properly understand the fault, configuration and performance for multiple vendors’ solutions and to solve/escalate to the vendor engineering. - Provide architecture design, implementation and maintenance support for telecommunications projects throughout the region as necessary, including travel to those locations to conduct site surveys - Responsible for continuity of the service and optimization of the QoS - Analyzing RTP traffic and media issues