SITTI is proud to announce that on July 24th, 2020, it received the CERTIFICATE OF APPROVAL for its MULTIFONO® M800IP® voice communication system from CAAC, the Civil Aviation Administration of China. The certificate states that the system “complies with the civil aviation CNS equipment certification rules (CCAR-87) and relevant provisions”.

This very important achievement has been reached with the help of the Beijing XiDi Communication Technology Ltd company that provided all required support and local knowledge. The certificate has been obtained after submitting the M800IP® VCS system to a large set of tests and after providing extensive proof of compliance to international rules and standards, including (but not limited to) ED137. This latter is the standard issued by EUROCAE for the definition of the way VoIP (Voice over IP) shall be used in the ATM field.

Mr. Giuseppe Vasquez is the SITTI Program Manager who followed all procedures and steps that led to the issue of the certificate. “This important result once more underlines the high competence of our company, capable of submitting to CAAC a product that fully passed all technical and compliance steps. CAAC requirements are comprehensibly very strict and demanding, because of the high responsibility they have to ensure voice service continuity for a safer sky over China”.

MULTIFONO® M800IP® demonstrated its built-in flexibility and adaptability, being able to pass without problems all the stringent rules imposed by CAAC to get the certificate of approval”, Mr.Claudio Tognoni – SITTI Commercial Officer for China – said.


The supply of VCS system to the Airport Authority of India (AAI) is proceeding according to the schedule. This important contract was awarded to SITTI in September 2019 (read here for more details), after a very competitive bidding process. It represents a big step towards the modernization of their Air Traffic Control infrastructure all over the country and one of the biggest successes for SITTI.

The contract is intended to serve 45 airports across the country, plus Civil Aviation Training College (CATC) and Specialized Maintenance Unit (SMU) with a large number of Voice Communication Systems (VCS) and Voice Recording Systems (VRS). The provision of the systems would have occurred in 5 lots. Two of them, covering the North-East and North region of India have already been shipped, and now it is the turn of the Western area:

  • 11 MAIN VCS Systems
  • 3 FALLBACK VCS Systems
  • 170 Controller Working Positions (CWP)
  • 22 Interfaces to Radio Remote Sites
  • 11 VRS Recording Systems

The following airports and facilities are involved (in alphabetical order):

  • Ahmedabad (main+fallback system)
  • Aurangabad
  • Bhavnagar
  • Bhopal
  • Indore
  • Mumbai ATC Complex (main+fallback)
  • Mumbai TWR
  • Nagpur (main+fallback system)
  • Rajkot
  • Surat
  • Vadodara

All systems supplied to AAI belong to the top performing MULTIFONO® M800IP® family, fully compliant to the international ED 137 VoIP standard for VoIP applications in the Air Traffic Control field.


Shaoguan is an important city in the south of China, not far from Hong Kong. With its more than 3 million inhabitants, it is the most northern city in the Guangdong province. Its enviable position makes it one of the most important cultural cities of the area.

SITTI has been supplying many Chinese cities with its Voice Communication Switching Systems (VCSS); we are very proud that Shaoguan can also be added to the long list, thus testifying the very good reputation of SITTI as a primary market leader in the Air Traffic Control field.

Through Beijing XiDi Communication Technology Co. Ltd, SITTI is having the opportunity to install a new MULTIFONO® M800IP® Voice Communication System at the Shaoguan airport. The system being commissioned is made of a limited number of controller working positions and radio/telephone/intercom facilities. Although the number of interfaces and operating positions is not very large, the supplied system has the same capabilities as larger ones. The standard ED137 Voice over IP (VoIP) statements and recommendations are implemented at all levels, thus making the Shaoguan system fully compliant to the latest technological achievements.

The system for Shaoguan is a further confirmation of the SITTI ability of scaling its systems from large ACCs with hundreds of positions to medium/small airport systems, without losing any of the standard features. Regardless of their size, all systems provide the customer with the same high quality.” – Giuseppe Vasquez, SITTI Program Manager, says.


SITTI has been awarded the supply of a brand new Voice Communication System (VCS) to be installed at Prishtina, Kosovo. The end user is the local air traffic management organization, ANSA (Air Navigation Service Agency), through a local system integrator company named TELELINK, based in the Republic of Macedonia.

The system being supplied by SITTI belongs to the MULTIFONO® M800IP® family, which is compliant to the most recent technical achievements and requirements set by the word famous ED-137 standard, developed by EUROCAE. It is a medium-sized system, capable of interfacing both analogue and digital radio and telephone channels and links. More specifically, the initial supply includes the possibility of interfacing 20 analogue telephone links and 28 VoIP (Voice over IP) radio channels. All the operators can have simultaneous access to all these resources from their Controller Working Position (CWP).

The presence of SITTI in the Balkan area is gradually increasing, thanks to the excellent reputation that SITTI has gained in the past decades all over the world and especially in this area, where other countries are also experiencing the completeness, reliability and performance characteristics of the MULTIFONO® system.

SITTI is a primary VCS manufacturer and supplier worldwide, capable of giving prompt and top edge solutions to Customer needs, both in the Civilian and Military fields. The leading edge, redundant, non-blocking architecture of the MULTIFONO® M800IP® provides flexibility and modularity for easy expansion and addition of further functionalities, conformant to the ED 137 standard.

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