Please assess the completion status of the following clinical trial:

Trial Title: Telephone vs. Voice Over IP Speech Comprehension in Hearing Aided Subjects.

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: SUPPORTIVE_CARE
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* Bluetooth enabled hearing aid (Nucleus 6 CI or a GN Resound hearing aid) compatible to the phone clip~* Use of hearing aid for ≥ 3 months.~* Native German speaker~Exclusion Criteria:~* Mentally or physically unfit to participate~* Vulnerable Person

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Conventional acoustic telephony (Type: PLACEBO_COMPARATOR): Telephone speech comprehension in hearing aided patients (Cochlear Implant or GN Resound hearing aid) for a conventional mobile phone call with acoustic transmission of the speech signal.
- Conventional bluetooth telephony (Type: ACTIVE_COMPARATOR): Telephone speech comprehension in hearing aided patients (Cochlear Implant or GN Resound hearing aid) for a conventional mobile phone call with direct bluetooth transmission of the speech signal to the cochlear implant or hearing aid.
- VoIP acoustic telephony (Type: ACTIVE_COMPARATOR): Telephone speech comprehension in hearing aided patients (Cochlear Implant or GN Resound hearing aid) for a VoIP mobile phone call with acoustic transmission of the speech signal.
- VoIP bluetooth telephony (Type: ACTIVE_COMPARATOR): Telephone speech comprehension in hearing aided patients (Cochlear Implant or GN Resound hearing aid) for a VoIP mobile phone call with direct bluetooth transmission of the speech signal to the cochlear implant or hearing aid.

Based on this trial design, predict the completion outcome and termination type (if applicable).