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About

CallSine is an autonomous, agent-powered outreach and sales-engagement platform that researches prospects deeply, scraping websites, LinkedIn profiles, and company information, to deliver hyper-personalized messaging at scale. It uses a multi-agent pipeline built on retrieval-augmented generation to ingest your sales and marketing assets, understand your value proposition, generate individualized emails, LinkedIn messages, or calls, and orchestrate deployment across channels with timing and cadence tailored to each prospect. CallSine doesn’t rely on basic templating; instead, it builds context-rich outreach by combining deep prospect insight, branded content, and automated follow-ups driven by behavioral cues. It also provides analytics and AI coaching to monitor engagement, refine messaging, and adapt strategy based on responses or lack thereof.

About

Map4 Relay is a browser-based LinkedIn outreach desk for sales representatives, founders, and independent sellers, including those working in fiber, wholesale, internet service, E-Rate, and construction markets. It helps users find public LinkedIn profiles by industry or a custom buyer segment, draft personalized connection notes, meeting offers, and follow-up messages, and organize prospects through invite, accepted connection, follow-up, and booked-call stages. Users can import LinkedIn connections from a CSV file, create segment-specific message playbooks, and review recent invite acceptance and meeting activity. Relay does not send messages or log in to LinkedIn on the user's behalf; users review and copy prepared text into LinkedIn themselves. The web desk can be used on a desktop or phone, and meeting-offer notes can mention Google Meet, Zoom, or Microsoft Teams.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Sales and marketing teams in B2B organizations wanting a tool to scale personalized prospect outreach, automate their top-of-funnel pipeline, and boost conversion without adding headcount

Audience

Sales representatives worldwide.

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$99 per month
Free Version Not Supported
Free Trial Supported

Pricing

$9/user/month
Map4 Relay starts at $9 per user per month after a 14-day free trial. No credit card is required for the trial, and subscriptions can be canceled by email with no lock-in.
Free Version Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

CallSine
Founded: 2021
United States
callsine.com

Company Information

Map4
Founded: 2025
United States
www.map4.net/relay

Alternatives

Alternatives

Apollo

Apollo

Apollo.io
Jason AI

Jason AI

Reply

Categories

AI Sales Agents Supported
AI Sales Tools Supported
AI SDR Supported
Sales Engagement Supported

Categories

Sales Engagement Supported

Sales Engagement Features

Call Scripts / Call Steps Not Supported
CRM Integration Supported
Email Sequences Not Supported
Email Tracking / Automation Not Supported
Lead Management Supported
Reporting / Analytics Not Supported
Sales / Voice Dialer Not Supported
Sales Automation Supported
Search Supported
Task Management Not Supported
Templates Supported
Workflow Management Not Supported

Integrations

Lead Onion Supported
LinkedIn Supported
RB2B Supported

Integrations

Lead Onion Not Supported
LinkedIn Not Supported
RB2B Not Supported
Claim CallSine and update features and information
Claim CallSine and update features and information
Claim Map4 Relay and update features and information
Claim Map4 Relay and update features and information