* Device Discount Offers Expire: Samsung Rugby II and BlackBerry Curve expire 6/30/13; Blackberry Bold and Sonim Bolt expire 6/30/13; Samsung Galaxy Rugby Pro expires 6/30/13; Samsung Rugby III expires 06/30/13. Device Discounts Eligibility: Requires two-year commitment to $30 EPTT030 Rate Plan or $5 EPTT05 Feature Bolt-on with two year commitment to eligible voice plan. Eligible voice plans include Business Talk plan, Family Talk plan, Nations plan or $19.99 add-a-line plans. Valid for new service activations only on AT&T business wireless service contracts. Standard contract terms and conditions apply.

For full details on Enhanced Push-to-Talk features and requirements, see Terms and Conditions. AT&T Enhanced Push-to-Talk software requires $30 EPTT030 Rate Plan or $5 EPTT05 Feature Bolt-on with eligible voice plan. Enhanced PTT service requires use of a compatible AT&T wireless device and acceptance of the End User License Agreement. Use of the service on smartphone devices requires download/installation of the Enhanced PTT software. User interface may vary by device. Some features may not be available on all devices. Enhanced PTT is designed to work over an AT&T cellular wireless data network connection. Wireless data coverage is not available in all areas. Enhanced PTT is not compatible with International Roaming. You may remain logged into the Enhanced PTT system if you roam out of coverage area. Enhanced PTT performance may be limited in 2G coverage areas. Availability, security, speed, timeliness, accuracy and reliability of service are not guaranteed by AT&T. Additional hardware, software, subscription, and/or special network connections may be required. Rate plan brochure(s) and data coverage map(s) can be found online.

Limited 4G LTE availability in select markets. LTE is trademark of ETSI. 4G speeds not available everywhere.