Embodiments relate to an apparatus (100; 300; 400; 500; 600) for recovering a phase of a received signal (S in ) carrying pilot and information symbols, wherein the received signal has been transmitted over a communication channel (200), the apparatus comprising a phase estimator (110) operable to determine a phase estimate (115) of a phase of the communication channel using the received signal, wherein the phase estimator (110) commits a phase slip with a phase slip probability (P s , Ρ τ ) depending on the communication channel (200); a demodulator (120) operable to determine demodulated pilot and information symbols (125) based on a coherent reception of the received pilot and information symbols using the determined phase estimate (115); a phase slip detector (130; 330; 430; 530; 630) operable to detect the phase slip based on a phase difference between at least one demodulated pilot symbol and at least one corresponding transmitted pilot symbol; and a phase corrector (140; 340; 440; 540) operable to correct a phase of demodulated information symbols based on the detected phase slip.