Be-Lingual had a rapid growth that led it to contract different Internet connections, FTTH technology, with the operator that had better coverage and lower latency at each location. Because of this, it has Internet connections with 3 different operators.
Each operator was assigning a different telephone number and with a single voice channel in each of the locations. The disadvantage of this is that, when you only have one voice channel (any fixed line of any operator), you can only answer one call, as the following calls will not be received.
Be-Lingual handled incoming calls with only one person receiving at each of the sites. Each site had its own number and only received calls one at a time. In addition, they could not communicate internally with each other to transfer calls, etc.