Updated from 12:46 p.m. EDT

Shares of

Smith Micro Software

(SMSI) - Get Report

were among the best-performing technology stocks Friday after the company announced that

Verizon

(VZ) - Get Report

extended an existing multi-year agreement to provide wireless access support.

Verizon's wireless remote access management solution, called the VZAccess Manager, will use Smith Micro's QuickLink mobile software to provide anytime access to email, file transfers, Web surfing and corporate Intranets without being plugged into a network or landline modem connection. Financial terms were not disclosed. Shares of Smith Micro traded up 62 cents, or 33.2%, to $2.49.

Tessera Technologies

(TSRA)

rose after it raised its full-year sales and earnings guidance. Reflecting a payment of $6 million from Samsung Electronics related to past royalties, Tessera now expects to earn 56 cents to 58 cents a share on sales of $63 million to $65 million. Previously, it had expected to earn 46 cents to 48 cents a share on sales of $57 million to $59 million. Analysts polled by Thomson First Call had expected full-year earnings of 48 cents a share on sales of $58.8 million. Shares of Tessera Technologies traded up $2, or 12.6%, to $17.92.

Shares of

Aspect Communications

(ASPT)

fell after the company reported weaker-than-expected second-quarter earnings and sales and warned that third-quarter sales would fall short of expectations. It earned 15 cents a share on sales of $91 million in the second quarter, below analysts' expectations of 18 cents a share on sales of $95.3 million. Looking ahead, it said that third-quarter sales would be equal to, or slightly above, second-quarter results. Analysts had expected third-quarter sales of $97.4 million. Shares of Aspect Communications traded down $2.63, or 22.9%, to $8.87.

Faro Technologies

(FARO) - Get Report

rose after the company reported preliminary sales results that beat second-quarter expectations. When it reports earnings on Aug. 4, it expects to post sales of about $24.1 million, compared with the $21.6 million analysts had expected. Faro chalked up the sales results to strong European and Asia/Pacific sales. It also reiterated its full-year sales outlook, saying that it expected to post sales of $90 million to $93 million. Analysts are expecting it to post annual sales of $92 million. Shares of Faro Technologies traded up $2.79, or 12.8%, to $24.60.

Shares of

Greenfield Online

( SRVY) rose on its first day of trading as a public company after the Internet survey company priced 5 million shares at the low end of its $13 to $15 offering range, raising about $65 million. Lehman Brothers led the underwriting syndicate, which included Friedman, Billings, Ramsey & Co., and Piper Jaffray. Shares of Greenfield Online traded up $5.70, or 43.9%, to $18.70.

Other technology volume leaders included

Oracle

(ORCL) - Get Report

, down 50 cents to $10.22;

Intel

(INTC) - Get Report

, down 42 cents to $22.73;

Microsoft

(MSFT) - Get Report

, down 39 cents to $27.48;

Cisco

(CSCO) - Get Report

, down 60 cents to $21.53; and

Sirius Satellite Radio

(SIRI) - Get Report

, down 14 cents to $2.47;

JDS Uniphase

(JDSU)

, down 7 cents to $3.16;

Applied Materials

(AMAT) - Get Report

, down 13 cents to $16.65;

Motorola

( MOT), down 78 cents to $15.80; and

Lucent

( LU), down 7 cents to $3.34.