Freelancers para contratação em Poland

  • Dropbox API
  • VoIP
  • Poland
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Mostrando 3 resultados
  • Contratar     mrksoftwarehouse
Contratar     mrksoftwarehouse

    mrksoftwarehouse mrksoftwarehouse

    Poland $75 Dólares / hora
    VoIP expert
    Poland
    2.6
    1 comentário 1 comentário $75 Dólares por hora
    My whole professional carrier is related to the VoIP technology and I've developed many custom VoIP solutions based on open-source platforms, mainly OpenSIPs, FreeSwitch and others.
    My whole professional carrier is related to the VoIP technology and I've developed many custom VoIP solutions based on open-source platforms, mainly OpenSIPs, FreeSwitch and others. menos
  • Contratar mrksoftwarehouse
  • Contratar     emdwaem
Contratar     emdwaem

    emdwaem emdwaem

    Poland $30 Dólares / hora
    Voip developer
    Poland
    4.0
    3 comentários 3 comentários $30 Dólares por hora
    14 years of professional experience in VoIP and telecommunication includes in-depth knowledge of Kazoo,Freeswitch, Kamailio/OpenSIPS, Asterisk PBX. Main skills is design and deploy multitennant load balanced VoIP systems with failover include realtime prepaid billing system. Other already done projects such like: -...
    14 years of professional experience in VoIP and telecommunication includes in-depth knowledge of Kazoo,Freeswitch, Kamailio/OpenSIPS, Asterisk PBX. Main skills is design and deploy multitennant load balanced VoIP systems with failover include realtime prepaid billing system. Other already done projects such like: - Conference servers (Asterisk,Freeswitch) - web based billing system - postpaid,prepaid (A2billing - Asterisk) - realtime prepaid systems (Freeswitch + Cgrates) - web based voice broadcast system (autodialer) - SS7 gateways (Asterisk,chan_ss7) - web based fax broadcast system (t.38, HylaFax) - web based sms broadcast system (Kannel) - Fax2Email system - Skype gateway (Asterisk) - SMS gateway (2N Stargate) - web based campaign system with agents interact (call/contact center) - FreePBX / Elastix configuration menos
  • Contratar emdwaem
  • Contratar     f1x3r
Contratar     f1x3r

    f1x3r f1x3r

    Poland $25 Dólares / hora
    Intelligence, knowledge, experience and dedication. At Your service.
    Poland
    1.7
    1 comentário 1 comentário $25 Dólares por hora
    * Systems administation: Linux (RedHat, Debian, Ubuntu), FreeBSD, Windows * Network administration: VLAN, VPN, Wireless networks, Network equipment managment (Nortel, HP, Cisco), Deep understanding of network architecture, * High availability: active-passive clusters (RHCS, Linux-HA), load-balancing techniques,...
    * Systems administation: Linux (RedHat, Debian, Ubuntu), FreeBSD, Windows * Network administration: VLAN, VPN, Wireless networks, Network equipment managment (Nortel, HP, Cisco), Deep understanding of network architecture, * High availability: active-passive clusters (RHCS, Linux-HA), load-balancing techniques, clustered file systems (DRBD, GFS/OCFS, GlusterFS) * Security: firewalling (iptables, ipfw, ipf/pf), antivirus techniques, antispam techniques (both before- and after- queue), SELinux (including writing custom policies), PKI * Database administration: MySQL, PostgreSQL, Oracle, SQL * Network services administration: www (apache, nginx), mail (postfix, sendmail, exim, dovecot, cyrus), DNS (bind, dnsmasq), LDAP (openldap) * Virtualization: Xen, KVM, VMWare (ESX/ESXi, VSphere), libvirt API, OVF * Programming: Perl, PHP, sh scripting, C/C++, Applescript, VBScript, Python, Java menos
  • Contratar f1x3r

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