4.1 Ships are required to keep a continuous listening
watch in the area on the relevant VHF sector channel and VHF channel
16.
4.2 Sound VTS will provide information service
to shipping about specific and urgent situations, which could cause
conflicting traffic movements as well as other information concerning
safety of navigation for instance, information about weather, current,
ice, water level, navigational problems or other hazards.
4.2.1 If necessary, Sound VTS can provide individual
information to a ship particularly in relation to positioning and
navigational information or local conditions by using the IMO Standard
Marine Communication Phrases (SMCP), section A1/6 for VTS message
markers. The message markers can be of ADVICE, WARNING, INFORMATION,
QUESTION, ANSWER, REQUEST and INTENTION.
4.2.2 Information of general interest to shipping
in the area will be broadcast by Sound VTS on VHF channel as specified
by the VTS operator or will be given on request. A broadcast will
be preceded by an announcement on VHF channel 16. All ships navigating
in the area should listen to the announced broadcast.
4.3 If a ship needs to anchor due to breakdown,
low visibility, adverse weather, changes in the indicated depth of
water, etc., Sound VTS can recommend suitable anchorages or other
place of refuge within the operational area.