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A2billing Callback Help — 4 found Reset All

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Vidhya Sagar
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Vidhya Sagar D.
80% (1)
Asterisk,VoIP,callback system,A2Billing, Calling card, Mobile Applications, Website design
  • Delhi, IN
Contact
  • a2billing
  • ios development
  • mysql
  • freepbx
  • freeswitch
  • asterisk framework
  • android application development
  • application programming interface development (API Development)
  • PHP programming language
  • Session Initiation Protocol (SIP)
  • voice over ip (voip)
  • website development
  • website design
  • + 10 more skills show less
$35PER HOUR
Contact
Muhammad
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Muhammad H.
100% (1)
VOIP (SIP) Consultant, OpenSource Telephony , Asterisk/freePBX
  • Crawley, GB
Contact
  • a2billing
  • linux
  • script writing
  • freepbx
  • asterisk framework
  • Bash (Bourne shell) programming language
  • Session Initiation Protocol (SIP)
  • voice over ip (voip)
  • + 5 more skills show less
$36PER HOUR
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Marcin
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Marcin M.
98% (2)
Cloud Telecom Engineer
  • Białystok, PL
Contact
  • couchdb
  • linux
  • mysql
  • elastic search
  • freepbx
  • freeswitch
  • opensips
  • asterisk framework
  • Perl programming language
  • PHP programming language
  • voice over ip (voip)
  • + 8 more skills show less
$28PER HOUR
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Available now
Jack
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Jack M.
VoIP Guru
  • Ghaziabad, IN
  • View portfolio (6 items)
Contact
  • a2billing
  • freepbx
  • freeswitch
  • opensips
  • vicidial
  • asterisk framework
  • website development
  • + 4 more skills show less
$25PER HOUR
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Available now
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