China Construction Bank builds resilient telephony with Gamma SIP

One of China’s big four banks, and ranked second in tier 1 capital terms in the World’s Top 1000 Banks by UK magazine The Banker in 2017, the Beijing headquartered China Construction Bank Corporation packs some impressive statistics. Some 15,000 banking outlets, more than 350,000 employees, personal and corporate customers in the hundreds of millions, a market capitalisation at the end of 2017 of more than 232,898 million US dollars. The list goes on…

The bank has commercial banking branches and subsidiaries in 29 countries and regions, and its services include asset management, financial leasing, trusts, life insurance, property and casualty insurance, investment banking, futures and pensions. It maintains a strong customer-centric, market-oriented business philosophy, carefully balancing short-term and long-term benefits, business goals and social responsibilities. The result is maximum value for customers, shareholders, associates and society as a whole

The benefits

  • Fully resilient solution, built for future technology.
  • Responsive partner.
  • Savings in call costs, including those to mainland China.
  • Good value for money.
  • Ease of dealing with Gamma’s dedication account manager and support team.
  • Simplified billing, easier to understand.
  • Massively more flexible telephony network.

The Challenge

Among the bank’s international operations is a presence in London, based in the heart of the city. Here some 150 staff conduct a range of corporate business activities, including trading. Telephony is a key priority in maintaining 24×7 contact with customers, brokers and with colleagues in mainland China. Anything less than excellent availability, reliability, vendor responsiveness, customer service and technical support is not an option. And with its previous provider, the bank was simply not getting the reliability, service and support it needed.

Hearing good things about Gamma from other financial industry customers, the bank’s Deputy Head of IT Roger Ye decided to investigate further. Unlike the unresponsive and disinterested attitude he’d encountered before, he found Gamma to be on the ball service and support wise, very technically knowledgeable and keen to engage.


London based staff


contact with customers

The Solution

Convinced it would get the responsiveness and reliability it sought, the bank decided to migrate its key telephony to Gamma. We supplied 20 SIP channels, and another 20 channels for fail over purposes, all connecting over the bank’s existing and proven Ethernet links. We also provided a dedicated, named account manager who could deliver on the one-to-one service, rapid response and prompt fulfillment needs of the client.

We also provided a calls package which offers highly competitive call charges, including to mainland China. But most critical of all to the bank is stability and consistency of service. “Compared with other providers we know we can trust Gamma 100%.” Says Roger Ye. “Their infrastructure is solid, their service is very reliable, and they’re a very trustworthy partner. We get instant response and any problems are dealt with very quickly. Gamma is one of the best and their service is worth every penny.”


SIP channels