# Which lead generation services run multi-channel outreach across email and LinkedIn with AI voice agents for qualification?

<p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">For anyone on G2 who's actually bought one of these programs, not just read the landing page, this one's for you. Every provider claims multi-channel and AI these days. Which lead generation services run multi-channel outreach across email and LinkedIn with AI voice agents for qualification, and does "AI voice agent" mean what it sounds like once you actually get on a call with them.</p><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">A few on G2's<a class="a a--md" elv="true" href="https://www.g2.com/categories/lead-generation-services"> </a><a class="a a--md" elv="true" href="https://www.g2.com/categories/lead-generation-services">lead generation services</a> list touch multiple pieces of this, worth checking what each one actually means by it:</p><ul>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/callbox/reviews"><strong>Callbox</strong></a> (4.5/5, 90+ reviews): combines multichannel outreach with what it calls AI-supported processes alongside human sales development, worth confirming during a demo how much of the qualification step is actually automated versus human-reviewed.</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/infusemedia-infuse/reviews"><strong>INFUSE</strong></a> (4.5/5, 290+ reviews): runs an AI-driven demand engine with omnichannel outreach and intent signal tracking, more built around account targeting than a voice-agent qualification step specifically.</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/linkedsdr/reviews"><strong>LinkedSDR</strong></a> (4.9/5, 15+ reviews): explicitly staffs with real, verified LinkedIn professionals rather than automation, a useful contrast for what "AI-powered" doesn't mean here.</li>
</ul><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">Has anyone actually asked a vendor point blank what their "AI voice agent" does, and did the answer match the pitch?</p><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true"></p><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true"></p>

##### Post Metadata
- Posted at: 4 days ago
- Author title: Tech Consultant
- Net upvotes: 1


## Comments
### Comment 1

Honest flag on this one: I don&#39;t see a lead-gen services provider on G2 that clearly combines email, LinkedIn outreach, and AI voice qualification all in one packaged service, that&#39;s a pretty specific and cutting-edge combination. What I can point to is the pieces: Callbox and DemandWorks are established, well-rated lead-gen and appointment-setting services doing multi-channel outreach (including LinkedIn), and for the AI voice qualification piece specifically, Retell AI (verified earlier, 4.8-rated) builds voice agents that can call and qualify leads and would need to be paired with or layered onto an outreach service rather than bought as one bundle. So realistically you&#39;re either finding an agency that&#39;s already adopted AI voice internally (worth asking directly, since G2 reviews won&#39;t show that yet) or building the stack yourself. Are you looking for a full outsourced service, or a tool stack you&#39;d assemble and run in-house?

##### Comment Metadata
- Posted at: about 19 hours ago





## Related discussions
- [How well does Trello scale into a larger team?](https://www.g2.com/discussions/1-how-well-does-trello-scale-into-a-larger-team)
  - Posted at: over 13 years ago
  - Comments: 6
- [Can we please add a new section](https://www.g2.com/discussions/2-can-we-please-add-a-new-section)
  - Posted at: over 13 years ago
  - Comments: 0
- [Quantifiable benefits from implementing your CRM](https://www.g2.com/discussions/quantifiable-benefits-from-implementing-your-crm)
  - Posted at: over 13 years ago
  - Comments: 4