@ -265,7 +265,7 @@ class UDPVoiceClient(LoggingClass):
offset = 4
for i in range(fields_amount):
first_byte, = struct.unpack_from('>B', data[offset])
first_byte, = struct.unpack_from('>B', data[:offset])
offset += 1
rtp_extension_identifer = first_byte & 0xF