Sigma Telecom is a global communications provider that offers VOIP, SMS, software, and data services to corporate clients. It provides switches, phone services, and online billing to companies around the world using sophisticated technology and high quality customer support. Sigma has interconnections with over 500 companies in over 170 countries and operates with high network capacity and reliability.

1. CORPORATE
presentation
VoIP, SMS, SOFTWARE

2. LICENCED
LANDLINE
TURKEY
OPERATOR
premier global
communications
provider.
VOIP SMS SOFTWARE
DATA MVNO OTTs
Services that 100% guarantee
reliable and lucrative partnerships
lead to absolute success.

3. Next
Generation
Switching
System
We provide services to corporate companies that serve
switches, PC2phone, device2Phone, calling cards, wholesale
termination and online billing services. Sigma develops
these services using the most sophisticated technology and
provides them to companies globally. Sigma Telecom uses
the best H.323 and SIP termination and combines it with a
high quality of customer service.

4. Monitoring
Experience
All traffic is analysed without exception
Specialized and experienced staff capacity
365 days 24/7 technical support
From level1 to level3

5. Global Coverage
Interconnection with Over 500 Companies
Active in Over 170 Countries
Operating at a 60.000 Channel Capacity
Wide Bandwidth Capacity
Full Network Infrastructure
GENBAND Session Border Controller
99.9 % Network Uptime
High Capacity Network Equipment
Over 400 M. Minutes Per Month

6. www.cellinfo.com
Enterprise
Solutions for
GSM
Parameters
The GSM Information Map is a tool
which provides aggregated data from
real sources and analyses them in real
time.
The GSM Information parameters such
as internet speed, PING, signal strength,
access technology, barrier & carrier,
mobile devices can be filtered and
compared by city, mobile operator
and network access technology.
C E L L INFO

7. *400# is an USSD program currently active in Turkey, it
allows the user for buying prepaid mobile top-up/packages,
checking bank card balance, paying bills without any
internet connection or application.
No internet connection means the safest, fastest and
easiest way of purchasing is *400#.
USSD
Program
That Makes
Everything
Easier
www.400.com.tr