Yahoo Voice
former telecommunications service (2007–2013)

Yahoo Voice was a Voice over Internet Protocol (VoIP), PC-PC, PC-Phone and Phone-to-PC telecommunications service. It was provided by Yahoo via its Yahoo Messenger instant messaging application.
Yahoo Voice used the Session Initiation Protocol (SIP), GIPS codec and the Dialpad engine for voice transport. After 2008 the service was provided by JAJAH, an external VoIP provider.
In July 2012, Yahoo Voice was compromised and 453,491 email addresses and passwords were stolen using SQL injection. A 17 MB text file containing the stolen passwords was released by a group of hackers called D33DS company. Yahoo announced the end of Yahoo Voice on January 30, 2013.
Yahoo Phone Out
PC-to-Phone calls to landlines and mobile phones was provided via the Yahoo Phone Out service. Conference calls from PC to Multiple (PSTN) phones or mobiles was not supported.
Yahoo Phone In
Phone-to-PC calls can be received from landline or mobile phones.
The public source identifies “Yahoo Voice” as former telecommunications service (2007–2013). This brief keeps that definition visible, then builds a research path around Yahoo, Voice and former.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 29, 2024. The linked authority identifier is Q8046879. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2008, 2012 and 2013.
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This entry incorporates text from “Yahoo Voice” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.