Ribbon Communications Inc - Ordinary Shares 8-K Sonus Networks Reports 2013 First Quarter Results

Exhibit 99.2

Sonus Networks, Inc.

Supplementary  Financial and Operational Data

$(000s)	Q113	FY12	Q412	Q312	Q212	Q112	FY11	Q411		Q311		Q211		Q111
Revenue
Product	37,796	153,326	45,809	33,520	32,586	41,411	154,373	47,082		41,892		29,446		35,953
Services	25,492	100,808	29,327	23,529	25,024	22,928	105,323	27,190		24,461		22,326		31,346
Total Revenue	63,288	254,134	75,136	57,049	57,610	64,339	259,696	74,272		66,353		51,772		67,299
SBC Revenue
Product	23,510	67,641	20,573	20,394	13,523	13,151	37,866	17,466		10,398		7,671		2,332
SBC as % Total Product Revenue	62%	44%	45%	61%	41%	32%	25%	37	%	25	%	26	%	6	%
Services	6,465	19,945	5,516	5,051	5,566	3,812	14,110	5,009		3,466		3,145		2,490
SBC Revenue	29,975	87,586	26,089	25,445	19,089	16,963	51,976	22,475		13,864		10,816		4,822
SBC as % Total Revenue	47%	34%	35%	45%	33%	26%	20%	30	%	21	%	21	%	7	%

% of Total Revenue	Q113	FY12	Q412	Q312	Q212	Q112	FY11	Q411		Q311		Q211		Q111
Revenue
Product	60%	60%	61%	59%	57%	64%	59%	63	%	63	%	57	%	53	%
Services	40%	40%	39%	41%	43%	36%	41%	37	%	37	%	43	%	47	%
SBC Revenue
Product	78%	77%	79%	80%	71%	78%	73%	78	%	75	%	71	%	48	%
Services	22%	23%	21%	20%	29%	22%	27%	22	%	25	%	29	%	52	%
Revenue by Geography
Domestic	69%	68%	51%	77%	73%	75%	60%	67	%	64	%	78	%	36	%
International	31%	32%	49%	23%	27%	25%	40%	33	%	36	%	22	%	64	%

% of Product Revenue	Q113	FY12	Q412	Q312	Q212	Q112	FY11	Q411	Q311	Q211	Q111
Revenue by Channel
Direct	83%	*	*	*	*	*	*	*	*	*	*
Indirect	17%	*	*	*	*	*	*	*	*	*	*

Operating Statistics	Q113	FY12	Q412	Q312	Q212	Q112	FY11	Q411		Q311		Q211		Q111
10% Customers
Number of 10% customers	2	1	1	1	1	3	2	3		1		2		1
Name of 10% customers	US Gov’t AT&T	AT&T	SoftBank	Level 3	AT&T	AT&T Verizon SoftBank	BTC AT&T	CenturyLink SoftBank Verizon		AT&T		AT&T CenturyLink		BAH Tel
Top 5 Customers as % of Revenue	50%	48%	45%	41%	54%	66%	43%	55	%	52	%	46	%	72	%
Number of Total Customers**	541		504	403	123	117		115		107		98		103
Number of New Customers**	163	230	180	40	6	4	21	12		8		0		1
Number of New Customers** with SBC Content	138	*	130	*	*	*	*	*		*		*		*

* Not historically provided.

**Customer Count reflects end customer and excludes customers with maintenance only revenue of less than $5k on a quarterly basis.