I checked the Nasdaq non-compliant list this morning and Sonus is not on the list (that's a good thing). Below was taken from their listing requirements.
Companies listed on NASDAQ are required to maintain a minimum closing bid price of $1.00 per share. If a company trades for 30 consecutive business days below the applicable minimum closing bid price requirement, NASDAQ will send a deficiency notice to the company, advising that it has been afforded a "compliance period" of 180 calendar days to regain compliance with the applicable requirements.
Thereafter, Capital Market companies can receive an additional 180-day compliance period if they meet all initial inclusion requirements for the Capital Market, except for the bid price requirement. If a Global Select Market or Global Market company is unable to comply with the bid price requirement prior to the expiration of its 180-day compliance period, it may transfer to The NASDAQ Capital Market, so as to take advantage of the additional compliance period offered on that market, provided it meets all requirements for initial listing on The NASDAQ Capital Market, except for the bid price requirement. If the company does not demonstrate compliance within the compliance period, it will be issued a delisting letter, which it may appeal at that time. See Hearings Process for additional information.
To demonstrate compliance with the bid price requirement, a company must maintain compliance for a minimum of 10 consecutive business days.
Although an automated computer system tracks each company's bid price on a daily basis, it is suggested that the company contact its Listing Qualifications analyst when it believes compliance has been achieved. NASDAQ will provide all compliance determinations, in writing, to the company.
Under certain circumstances, to ensure that the company can sustain long-term compliance, NASDAQ may require the closing bid price to equal or to exceed the $1.00 minimum bid price requirement for more than 10 consecutive business days before determining that a company complies. In determining whether to look beyond the 10 days, NASDAQ will consider, but is not limited to, the following factors:
Margin of compliance (the amount by which the price is above the $1.00 minimum standard);
Trading volume (a lack of trading volume may indicate a lack of bona fide market interest in the security at the posted bid price);
The market maker montage (e.g., if only one of eight market makers is quoting at or above the minimum bid price and the quote is only for 100 shares, then added scrutiny may be appropriate); and
The trend of the stock price (is it up or down?).
