Effective immediately, Digicel has blocked unlicensed Voice Over Internet Protocol (VOIP) services from its network.
In an advisory, Digicel said unlicensed VOIP operators like Viber and Nimbuzz use telecom networks to deliver their services, but do not pay the requisite fee.
The company has described the action as illegal bypass activity.
Digicel says it has been forced to take action as the unauthorized services have been putting enormous pressure on bandwidth and impacting negatively on customers' data usage experience.
The company says it hopes the action will be temporary as discussions are ongoing with the unlicensed VOIP providers.