a method and system for directed call establishment to anchor selected cellular calls in a voice over internet protocol or an ip multi - media subsystem network employs a mobile handset application client to interrupt selected cellular call initiations and request a directed call establishment number from a converged services node . a call placed to the directed call establishment number creates a call signaling path through the converged services node in the voip or ims network , which can then exercise control over the call to provide enhanced call services . the converged services node completes a call connection to the original called number in a manner transparent to the user of the mobile handset .