Exhibit 99.1

ASPECT COMMUNICATIONS REPORTS FIRST QUARTER 2005
FINANCIAL RESULTS

SAN JOSE, Calif., April 19, 2005 — Aspect Communications Corporation (Nasdaq: ASPT), a leading provider of enterprise customer contact solutions, today reported financial results for the first quarter ended March 31, 2005.

FIRST QUARTER FINANCIAL RESULTS:

Revenues for the first quarter of 2005 totaled $90.6 million compared to $96.8 million for the fourth quarter of 2004 and $91.5 million for the first quarter last year. Product revenue in the first quarter of 2005 was $30.9 million compared to $33.7 million for the fourth quarter of 2004 and $28.1 million for the first quarter of 2004. Services revenue totaled $59.7 million in the first quarter compared to $63.0 million for the fourth quarter of 2004 and $63.4 million for the first quarter of 2004.

Net income attributable to common shareholders for the first quarter was $10.8 million or a profit of $0.13 per share on a basic and fully diluted basis. This compares with a net income attributable to common shareholders of $15.5 million or a profit of $0.19 per share for the fourth quarter of 2004 and a net income attributable to common shareholders of $13.4 million or a profit of $0.17 per share for the first quarter of 2004.

“In addition to seeing improved stability in our support revenue stream, we are encouraged by our year-over-year growth in product revenue,” said Gary Barnett, Aspect President and CEO. “We saw strong growth in our workforce productivity product line and our core ACD business, which is testimony to both our innovation and execution strength. We continue to build on our solid financial position, through effective cost management, helping to ensure Aspect’s long-term success and leadership in the contact center sector.”

For the first quarter of 2005, gross margins were 60%. This compares to 60% for the fourth quarter of 2004 and 61% for the first quarter of 2004. Operating expenses were $40.3 million for the first quarter of 2005 compared to $39.0 million for the fourth quarter of 2004 and $37.9 million in the first quarter of 2004.

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Aspect Communications Announces Financial Results for the Quarter ended March 31, 2005, page 2

Cash, cash equivalents, and short-term investments totaled $219.2 million as of March 31, 2005. This compares to $202.6 million as of December 31, 2004. The company generated $18.3 million in cash from operations during the first quarter. Accounts receivable at quarter-end totaled $48.0 million and days sales outstanding were 39 days compared to 38 days at December 31, 2004.

FIRST QUARTER OPERATIONAL HIGHLIGHTS:

Aspect received revenue from customers across a variety of industry segments. Some of these customers included: British Telecom for Royal Mail Group, DHL, Danversbank, Fairfax County, Healthfirst, Puget Sound Energy, Response Insurance and StarTek.

BUSINESS OUTLOOK:

The following statements are forward-looking, and actual results may differ materially:

The company is planning for second quarter total revenue to be in a range of $90 million to $92 million.

The company expects to complete consolidation of its San Jose facilities in the second quarter of 2005. Acceleration of the lease obligation on the vacated facilities will result in a second quarter restructuring charge of approximately $4 million and will impact second quarter earnings per share by approximately $0.04 per share.

Second quarter operating income, including the impact of the restructuring charge discussed above, is expected to be in a range of $10 million to $11 million.

Earnings per share for the second quarter, including the impact of the restructuring charge discussed above, is expected to be in a range of $0.08 per share to $0.10 per share.

Aspect Communications Announces Financial Results for the Quarter ended March 31, 2005, page 3

The company will host a conference call and web-cast today at 2:00 pm Pacific Time to discuss first quarter 2005 results. A replay of the conference call will be available from April 19, 2005 at 5:00 pm Pacific Time through April 26, 2005 at 8:59 pm Pacific Time by calling 800-388-9064 or 402-220-1116. The web-cast and replay of the conference call may be accessed from the company’s home page at www.aspect.com.

About Aspect Communications

Aspect Communications Corporation is a leading provider of contact center solutions and services that enable businesses to manage and optimize customer communications. Aspect’s global customer base includes more than two-thirds of the Fortune 50 and leading corporations in a range of industries, including transportation, financial services, insurance, telecommunications, retail and outsourcing, as well as large government agencies. The company’s leadership is based on two decades of expertise. Aspect is headquartered in San Jose, Calif., with offices in countries around the world.

Notes on financial presentation: Actual financial results are prepared in accordance with U.S. generally accepted accounting principles.

Certain statements contained in this press release, including but not limited to, statements relating to expected second quarter total revenue, operating income and earnings per share are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, Section 21E of the Securities and Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995, and are made under its safe-harbor provisions. Such forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those projected. Specific factors that may cause actual revenue, operating income and earnings per share results to differ include: the significant percentage of Aspect’s quarterly sales consummated in the last few days of the quarter and the potential for delays in closing of sales or product deliveries make financial predictions especially difficult and raise a substantial risk of variance in actual results; changes in the overall mix and volume of product line revenues can have a significant impact on gross margin and profitability; the loss of support customers or if one or more support contracts is delayed, reduced or cancelled; fluctuations in our North American and International business levels and/or economic conditions, the hiring and retention of key employees, insufficient, excess or obsolete inventory and variations in valuation, and foreign exchange rate fluctuations can all cause revenues and income to fall significantly short of anticipated levels. The economic, political and other uncertainties caused in the United States and throughout other regions of the world add to these challenges. Additional risks that could cause actual results to differ materially from those

Aspect Communications Announces Financial Results for the Quarter ended March 31, 2005, page 4

projected are discussed in Aspect’s Form 10-K for the year ended December 31, 2004, as filed with the Securities and Exchange Commission. Readers are cautioned not to place undue reliance on these forward-looking statements, which reflect management’s analysis only as of the date hereof. Aspect undertakes no obligation to publicly release the results of any revision to these forward-looking statements that may be made to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

Aspect, the Aspect logo and the phrases and marks relating to other Aspect products and services discussed in this press release constitute one or both of the following: (1) registered trademarks and/or service marks of Aspect Communications Corporation in the United States and/or other countries or (2) intellectual property subject to protection under common law principles. All other names and marks mentioned in this document are properties of their respective owners.

Carrie Kovac
Director, Investor Relations
Aspect Communications
(408) 325-2437
carrie.kovac@aspect.com

ASPECT COMMUNICATIONS CORPORATION
CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except per share amounts — unaudited)

	Three months ended
	March 31,			December 31,			March 31,
	2005			2004			2004
Net revenues:
Software license	$	19,127		$	20,743		$	16,605
Hardware		11,737			12,999			11,530
Services:
Software license updates and product support		51,555			51,995			54,257
Professional services and education		8,184			11,015			9,095
Services		59,739			63,010			63,352
Total net revenues		90,603			96,752			91,487
Cost of revenues:
Cost of software license revenues		2,768			2,672			1,555
Cost of hardware revenues		7,133			8,308			8,331
Cost of services revenues		25,561			27,377			25,239
Amortization of intangible assets		724			724			725
Total cost of revenues		36,186			39,081			35,850
Gross margin		54,417			57,671			55,637
Operating expenses:
Research and development		11,400			10,624			11,343
Sales and marketing		19,011			19,632			19,599
General and administrative		8,965			6,499			6,940
Restructuring charges		411			—			—
Amortization of intangible assets and stock-based compensation		507			2,261			17
Total operating expenses		40,294			39,016			37,899
Income from operations		14,123			18,655			17,738
Interest and other income (expense), net		758			743			(54	)
Income before income taxes		14,881			19,398			17,684
Provision for income taxes		1,786			1,627			2,110
Net income		13,095			17,771			15,574
Less preferred stock dividend, accretion, and amortization		(2,314	)		(2,269	)		(2,136	)
Net income attributable to common shareholders	$	10,781		$	15,502		$	13,438
Basic earnings per share (1)	$	0.13		$	0.19		$	0.17
Basic weighted average shares outstanding		60,757			59,973			57,740
Diluted earnings per share	$	0.13		$	0.19		$	0.17
Diluted weighted average shares outstanding		86,047			85,882			86,181

(1) Pursuant to GAAP, the Company is required to present earnings per share “as if” all earnings were distributed to Common and Preferred Shareholders. Under this “two class” method, earnings are allocated to Common and Preferred Shareholders in proportion to their respective ownership interests. This calculation for the three months ended March 31, 2005 would allocate approximately 73% of the current earnings to Common Shareholders and yield $0.13 earnings per share per Common Shareholder, as shown above. However, the Company has not in the past, and does not currently intend to, declare a distribution of earnings. Absent this “as if” apportionment earnings per Common share would be $0.15 for the three months ended March 31, 2005.

ASPECT COMMUNICATIONS CORPORATION
CONSOLIDATED BALANCE SHEETS
(in thousands - unaudited)

	March 31,		December 31,		March 31,
	2005		2004		2004
Assets
Current assets:
Cash, cash equivalents and short-term investments	$	219,168	$	202,631	$	194,999
Accounts receivable, net		48,012		49,163		39,062
Inventories		3,745		3,340		5,607
Other current assets		17,058		13,138		20,663
Total current assets		287,983		268,272		260,331
Property and equipment, net		62,277		62,494		66,225
Intangible assets, net		4,292		5,015		7,187
Other assets		4,273		4,723		5,528
Total assets	$	358,825	$	340,504	$	339,271
Liabilities, redeemable convertible preferred stock, and shareholders’ equity
Current liabilities:
Short-term borrowings	$	124	$	150	$	143
Accounts payable		5,403		7,491		6,590
Accrued compensation and related benefits		19,357		19,252		19,518
Other accrued liabilities		58,562		61,954		56,568
Deferred revenues		55,670		48,003		63,407
Total current liabilities		139,116		136,850		146,226
Long term borrowings		138		155		40,013
Other long-term liabilities		4,523		5,793		9,219
Total liabilities		143,777		142,798		195,458
Redeemable convertible preferred stock		44,804		42,490		35,817
Shareholders’ equity		170,244		155,216		107,996
Total liabilities, redeemable convertible preferred stock, and shareholders’ equity	$	358,825	$	340,504	$	339,271

ASPECT COMMUNICATIONS CORPORATION
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands - unaudited)

	Three months ended
	March 31, 2005			December 31, 2004			March 31, 2004
Cash flows from operating activities:
Net income	$	13,095		$	17,771		$	15,574
Reconciliation of net income to cash provided by operating activities:
Depreciation		4,011			5,807			6,105
Amortization of intangible assets		724			724			743
Non-cash compensation and services expenses		507			2,261			—
Loss on disposal of property		2			10			9
Loss on short-term investment, net		399			371			267
Changes in operating assets and liabilities:
Accounts receivable, net		317			(6,215	)		206
Inventories		(457	)		769			507
Other current assets and other assets		(3,589	)		2,394			(732	)
Accounts payable		(2,068	)		147			1,658
Accrued compensation and related benefits		228			(1,794	)		1,741
Other accrued liabilities		(2,867	)		(2,509	)		(10,177	)
Deferred revenues		7,973			(1,072	)		13,078
Cash provided by operating activities		18,275			18,664			28,979
Cash flows from investing activities:
Purchase of investments		(29,394	)		(36,777	)		(61,054	)
Proceeds from sales and maturities of investments		27,967			39,580			33,317
Property and equipment purchases		(3,903	)		(2,783	)		(3,827	)
Cash provided by (used in) investing activities		(5,330	)		20			(31,564	)
Cash flows from financing activities:
Proceeds from issuance of common stock, net		3,649			2,358			7,642
Payments on capital lease obligations		(43	)		(56	)		(33	)
Proceeds from borrowings		—			—			40,000
Payments on borrowings		—			—			(40,979	)
Payments on financing costs		—			(32	)		(1,053	)
Cash provided by financing activities		3,606			2,270			5,577
Effect of exchange rate changes on cash and cash equivalents		(421	)		1,941			273
Net increase in cash and cash equivalents		16,130			22,895			3,265
Cash and cash equivalents:
Beginning of period		89,250			66,355			75,653
End of period		105,380			89,250			78,918
Short-term investments at the end of period		113,788			113,381			116,081
Cash, cash equivalents and short-term investments	$	219,168		$	202,631		$	194,999
Supplemental disclosure of cash flow information:
Cash paid for interest	$	171		$	142		$	643
Cash paid for income taxes	$	1,324		$	1,660		$	2,967
Supplemental schedule of noncash investing and financing activities:
Accrued preferred stock dividend and amortization of redemption premium	$	1,939		$	1,898		$	1,779
Amortization of beneficial conversion feature	$	375		$	371		$	357