eS21 systems have in-depth knowledge of the following state-of-the-art technologies:
OS/Platforms/Technologies |
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| Microsoft.NETÂ Windows Forms, ASP.NET, Compact Framework | Java EE EJB, Struts, Spring, Hibernate |
LAMP Linux, Apache, MySQL, PHP |
VoIP SIP, RTP |
UNIX Linux, FreeBSD, Sun Solaris, HP-UX, IBM AIX |
| Microsoft Windows MFC, COM, Windows API, DDK, Delphi |
Java ME |
Web HTML, XHTML, XML, XSLT, CSS, JavaScript, Flash (ActionScript), Ajax |
Billing RADIUS, DIAMETER |
Multiplatform/ Crossplatform Qt, wxWidgets, C/C++ |
| SharePoint, FileNet, Documentum |
Java SE including Swing |
CRM Salesforce.com MS CRM Sugar-CRM |
SAP SAP R/3, ABAP, SAP NetWeaver |
Ruby on Rails |
Databases |
Application Servers and Web Servers | Case Tools |
| IBM DB2, MS SQL Server, MySQL, Oracle, SAP DB, PostgreSQL | BEA WebLogic, IBM WebSphere, SAP Application Server, Apache, MS IIS, JBoss, Tomcat, Oracle |
Rational Rose Tools, ERwin, PowerDesigner |
VoIP Technologies |
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| Protocols | Codecs | Security Standards and Protocols | Testing | Billing |
| SIP RTP/RTCP |
H.261, mpeg-4 G 711, GSM, PCMA, other |
MIKEY, SRTP | Scalability testing, stress and load testing, performance testing | RADIUS, CDR, OSP |
Embedded Technologies |
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| Development Platforms | OS | Interfaces | Wireless Technologies |
| ARM, XScale, x86, MIPS, PowerPC | Embedded Linux, Windows CE.NET, RTOS: QNX, eCos | USB Host/Client/OTG, Ethernet, LCD TFT/STN, Flash Cards CF/MMC/SD, PCMCIA, PCI, ISA, VME, SSP/SPI/uWire3, UART, CAN |
IrDA, Bluetooth, IEEE 802.11, GSM/GPRS |