How to Train a Speech API David Thomson Principal Architect AT&T Research Labs © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Outline • API strategy • Why do we need hints? • Generic hints flavors begin PREFIX ALTGRAM • Use cases • ASR = Automatic Speech Recognition • API = Application Programming Interface © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. GENERIC end Challenge: Make ASR Development Easy Historical obstacles: • Specialized knowledge • Few standards • Often undocumented © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. The AT&T Speech API site © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. The AT&T Developer Program Advertising Device Capabilities In-App Messaging AT&T U-verse MMS SMS Payment Speech © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. WMSSP Security Gateway Internet The AT&T Speech API © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Watson Payment Ads SMS AT&T Labs Speech Research • First voice synthesizer in 1939 • 1+ million R&D hours in language technologies over 35 years • 850+ patents, 3000+ technical papers • Hundreds of large-scale speech services for Consumer and Enterprise • Deep subject matter experts (1939) AT&T speech synthesizer © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Watson software Inside Watson Core = Watson Package Acoustic model Language model Pronunciation model Punctuate/capitalize © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Plug-ins API usage #Send wave file to Watson:! curl -H content-type:audio/wav \! !-H accept:prettyjson --data-binary \! [email protected] \! !http://wmssp.research.att.com/ !dictation.iphone/asr! © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Speech SDK © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Speech SDK – code example (IBAction) listen: (id) sender { ATTSpeechService* speechService = [ATTSpeechService sharedSpeechService] [speechService startServiceWithURL: self.mySpeechURL withAudioData: nil];" }" © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Constraint: context-free grammar (CFG) for what is my in Please tell me Uh, my savings checking savings account * * give me account. checking * © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. balance. Sending a grammar inline to the API {… …} Grammar Text Security Audio © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Watson Inline grammar request Content-Type: multipart/x-srgs-audio SRGS grammar Audio Content-Type: application/srgs+xml <grammar root="top" xml:lang="en-US"> … </grammar> Content-Type: audio/wav RIFF…WAVEfmt…..#%*^ audio-data-goes-here………………………………… ……………. … © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Pronunciations • • • • New words Unusual names Acronyms Foreign words Lexicon SRGS grammar Audio Content-Type: multipart/x-srgs-audio Content-Type: application/pls+xml <lexicon alphabet=“sampa”> <lexeme> <grapheme>ca$h</grapheme> </phoneme>k { S</phoneme> </lexeme> </lexicon> Content-Type: application/srgs+xml <grammar root="top" xml:lang="en-US"> … </grammar> Content-Type: audio/wav RIFF…WAVEfmt…..#%*^ audio-datagoes-here- ………… ……………. … © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. CFGs vs. SLMs Context-Free Grammars (CFGs) channel 0 volume Statistical Language Models (SLMs) up 1 down day/0.5 2 0 good 1 2 dog/0.4 job/0.1 © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. 3 4 CFGs vs. SLMs Context-Free Grammars (CFGs) • Hand-crafted rules Statistical Language Models (SLMs) • Data-driven • Very high-accuracy • High-accuracy • Easy to assemble • Complex to assemble • Finite phrases • Natural language • Control applications • Dictation applications © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Context: Optimized for the domain No problem, I ll get a table Generic two cheese pizzas Sorry I m running late BusinessSearch closest papa s pizza SMS © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Detail Preview Voicemailto-text © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. TV Search – U-verse Easy Remote • Listing search • In App Store What comedy shows are on tonight? • Updated daily © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. AT&T Speech API contexts in production • Gaming • Social Media • Web Search • Business Search • Voicemail-to-text • SMS • Question and Answer • TV • Generic • Grammar List (Inline) • Generic with Hints • Text-to-Speech © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Alpha APIs at foundry.att.com • Connected car Embedded Watson Watson Application: Dialog & userServices models experience connectors Operating System Processor Headboard • Virtual assistant • Voice biometrics • Language translation • Multilingual generic © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Recognized text Speak message Press mic button Transcribe by V-Soft © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Normal transcription Spoken: “Gary, when you get this, stop by my office please. I need to make sure that the report is going to be finished by 9:00 tomorrow.” © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Out-of-domain words Spoken: “'Twas brillig, and the slithy toves Did gyre and gimble in the wabe: All mimsy were the borogoves, And the mome raths outgrabe.” © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Generic with hints – series & parallel begin PREFIX (CFG) GENERIC (SLM) GENERIC (SLM) begin end ALTGRAM (CFG) © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. end Generic with hints - combinations begin PREFIX (CFG) GENERIC (SLM) ALTGRAM (CFG) begin GENERIC (SLM) end ALTGRAM (CFG) © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. end Example hints • • • • • • • Products Contact names Locations – Streets, business names, … Telephone numbers Company lingo, acronyms, business terms Made-up words Car/phone/appliance control © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Example API call $ curl -v -s -H 'Accept:prettyjson' \ -H 'X-Arg: ClientApp=DavidsHotels' \ -H 'X-Arg:GrammarPenaltyLoop=0' \ -H 'Content-Type:multipart/x-srgs-audio' \ -F '[email protected];type=application/pls+xml' \ -F '[email protected];type=application/srgs+xml' \ -H "MIME-Version: 1.0" --data-binary "@$vacancy.wav" \ "http://developer.att.com/ism.inline_grammar.eval/asr" © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Example JSON response "Recognition”: { "NBest": [ { "Confidence": 0.86, "Grade": "accept", "Hypothesis": ”Rooms for August 29th", "WordScores": [0.8, 0.579, 0.899, 0.75], } "ResponseId": "cb62cdb3a0c8f206f2baf6”, } © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Generic with grammar prefix begin PREFIX (CFG) GENERIC (SLM) end • “Text David, I’ll meet you at the restaurant.” • “Where can I buy birthday supplies?” © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Generic with parallel alternate grammar begin GENERIC (SLM) ALTGRAM (CFG) • “Please call me when you get this” • “Buy Casey’s present” • “Power off” © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. end Third-party app • • • • Recognizes product names Searches ebay Built by freelance developer Effort: 10 hours end-to-end Sergey Garazha Mobile developer Rostov-on-Don, Russia © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Hints – Grammar for unknown words © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Prefix and parallel combination begin PREFIX (CFG) GENERIC (SLM) end ALTGRAM (CFG) Virtual assistant: “What time is it?” “Remind me at 4:20, pick up Jeremy from school.” © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Generic with looped grammar begin GENERIC (SLM) ALTGRAM (CFG) “Order a set of R27b framulators.” “Do you have watermelon in stock?” © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. end Generic with Hints: x-grammar-loop © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Mixing n-grams with unigrams 3-gram: begin P(t1,…,tN) ≅ Πn P(tn|tn-1,tn-2) = P(t1) P(t2|t1) P(t3|t2,t1) P(t4|t3,t2)… Mixed 3-gram and unigram: P(t1,…,tN) ≅ P(t1) P(t2|t1) P(t3|t2,t1) P(t4|t3,t2)… P(t10|t9,t8) P(t11) P(t12|t11,t10)… © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. GENERIC (SLM) ALTGRAM (CFG) end Use case: Sales support begin PREFIX (CFG) GENERIC (SLM) end (Grammar elements are underlined) SRGS: • “Book a flight” Hints: • “Meeting notes: Customer likes the price.” SRGS Generic © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Use case: Calendar GENERIC (SLM) begin end ALTGRAM (CFG) SRGS: • “Set alarm for 5:00 a.m.” SRGS: • “Send meeting invite to my group” Generic: • “Remember to pick up scout uniforms” © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Use case: Automotive PREFIX (CFG) begin GENERIC (SLM) end ALTGRAM (CFG) Generic: Parallel: Parallel: Series: Series: • • • • • “What is there to do nearby?” “Radio on” “Directions to the nearest gas station” “Play music by Maroon 5” “Send email to Ron, I’ll meet you at 5:00 © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Use case: Virtual Assistant begin PREFIX (CFG) GENERIC (SLM) end ALTGRAM (CFG) Generic: • “What time does the Superbowl start?” Parallel: • “Call Gary Jackson” Series: • “Search for news on riots in Egypt” © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Use case: ivee Sleek • Uses AT&T Hints API • Dual beam-forming mics • Temperature/light sensors © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. ivee features Alarms - e.g. "Wake me up at 6:30am.” Time - e.g. "What time is it in Hong Kong?" Reminders - e.g. "Remind me to pick up the kids at 2:45." Controls Devices - e.g. "Set the thermostat to 71 degrees." News - e.g. "What's the weather like in New York Friday?” Sleep Sounds - e.g. "Play ocean waves for 15 minutes.” Bed Time Stories - e.g. “Read me a bed time story.” FM Radio - e.g. "Tune the radio to 102.7 FM.” © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Homework • Sign up for a free account at developer.att.com • Record a wave file, send to the generic context • Add speech to your current or next project © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Q&A © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T. Thank You © 2014 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. Information contained herein is not an offer, commitment, representation or warranty by AT&T and is subject to change. Mention of a specific company or entity is not an endorsement by AT&T.
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