One should have good understanding of wireless technologies like GPRS, GSM, CDMA WCDMA and 3G Good understanding in the field of design, development of SS7 stack or call control or any stack development or billing applications. sound knowledge of IVR and SS7 technologies is a must. SS7 over IP and SIP desired.
5 freelancers estão ofertando em média $3680 para esse trabalho
hello sir i do not think so that i have to give you explanation about me and my team. just put me trust i will prove it because your requirement is so simple. i have developed such system for my client.