AI Voice Agent FAQ — Pricing, HIPAA, Integrations
Answers about CallSphere AI: pricing, HIPAA compliance, integrations, 24-hour setup, 57+ languages, and payment processing.
General
How do you handle payments?
Payments are processed by PCI-DSS compliant providers (e.g., Stripe). We do not store card details—works the same for voice calls and chat.
Do you support both voice and chat?
Yes! CallSphere provides AI-powered voice agents for phone calls and chatbot agents for web chat and SMS—all from one platform.
Do you integrate with my catalog?
Yes. Connect via API or drop in a CSV import - CallSphere keeps it synced across voice and chat agents.
Is my data safe?
Data is encrypted in transit (TLS) and at rest where supported. We use role-based access controls and audit logging. See our Security page for details.
Can I try a demo?
Absolutely - book via the form below and we will tailor a walkthrough showing both voice and chat agents for your use case.
How long does it take to set up?
Simple deployments can be ready in as little as 24 hours. Integration access, workflow scope, and testing determine the schedule for your business.
What languages do your AI agents support?
The platform supports 57+ languages on every plan — there's no per-tier language limit. Confirm the languages and voice quality you need during your demo.
Can I customize the voice and personality of my agent?
Yes. You can configure tone, speaking style, vocabulary, and personality for each agent. Set different personas for different product lines, regions, or use cases.
Is CallSphere HIPAA compliant?
Yes. Every CallSphere plan is HIPAA compliant: we sign a Business Associate Agreement (BAA) with every healthcare customer, on any plan, before any PHI is handled. PHI handling is encrypted and audit-logged.
What CRM and business tools do you integrate with?
CallSphere integrates with HubSpot, Salesforce, Zendesk, Freshdesk, Shopify, WooCommerce, Stripe, Square, Twilio, and more. Standard integrations updating one system per workflow start on Act; connected workflows across multiple systems start on Orchestrate; bespoke integrations and private APIs are built on Custom Build.
How does CallSphere handle peak call volumes?
There's no per-plan concurrency cap to hit — call capacity is managed as shared infrastructure, not sold as a tier limit, and it scales with demand on every plan. For an unusually large or bursty spike (a major campaign launch, a seasonal peak), contact us to agree dedicated capacity and overflow routing ahead of time.
Can the AI agent process payments during a call?
Yes. Voice and chat agents can securely collect payment information and process transactions through Stripe or Square during the conversation, with PCI-DSS compliant handling.
What happens if the AI can't handle a request?
CallSphere includes intelligent escalation. If the AI detects a complex issue or the customer requests a human, the call or chat is transferred to your team with full context and conversation history.
How do I track my AI agent's performance?
Every plan includes live monitoring, transcripts and analytics from the dashboard, starting on Answer — there's no reporting tier gate. See the pricing page for the full capability list by plan.
Can I export my data from CallSphere?
Yes. You can export call logs, transcripts, analytics, and customer data at any time via the dashboard or API. We support CSV, JSON, and direct database integrations. Your data is always yours.
What is the best AI phone answering service for small businesses?
CallSphere's plans are chosen by what you need the AI to do, not by call volume. Answer ($19/mo) answers questions, takes messages and summarizes calls — a good fit for a small business that mainly needs coverage. Once you want the AI to book, update records or process orders in your existing software, Act ($49/mo) is the entry point for that. AI, telephony and infrastructure usage is billed separately at cost on every plan.
How much does an AI receptionist cost per month?
CallSphere plans start at $19/mo (Answer), then $49/mo (Act), $99/mo (Orchestrate), $149/mo (Custom Build) — chosen by what you need the AI to do, not call volume. Annual billing saves 20%. AI, telephony and infrastructure usage is billed separately at cost, with no markup — about ~$0.15/min inbound and ~$0.17/min outbound.
What is the cheapest CallSphere plan, and is there a basic question-and-answer AI agent?
Yes. The Answer plan is $19/mo and is our most affordable tier — a question-and-answer AI voice and chat agent that answers customer and employee questions from your business info and knowledge base 24/7, with message-taking and call/chat summaries, on every channel and with no cap on calls or conversations. Answer does not include booking, order flows, or back-office workflow automation; those start on the Act plan ($49/mo). AI, telephony and infrastructure usage is billed separately at cost.
Can AI voice agents handle appointment scheduling for medical offices?
Yes. CallSphere offers HIPAA-compliant AI voice agents that handle appointment scheduling, rescheduling, and cancellations for medical offices. Agents integrate with Google Calendar, Calendly, and custom EHR systems, and can collect patient intake information during the call.
What's the difference between an AI voice agent and a traditional IVR?
Traditional IVR systems use rigid menu trees ('Press 1 for sales'). CallSphere AI voice agents have natural conversations — callers speak normally and the agent understands intent, asks follow-up questions, and completes tasks like booking appointments or processing payments, all without menu prompts.
How long does it take to set up an AI call center?
Most CallSphere customers are live within 24 hours. Complex deployments with custom integrations, knowledge bases, and multi-agent workflows typically take 1-2 weeks with dedicated onboarding support.
Can I use CallSphere with my existing phone number?
Yes. CallSphere works with your existing phone number through call forwarding or SIP trunking. You can also port your number directly or use a new number provisioned through Twilio. Your callers experience no change — they dial the same number they always have.
Enterprise & Compliance
What SLA does CallSphere offer?
Self-serve plans (Answer through Custom Build) run on CallSphere's shared, multi-zone infrastructure without a per-tier uptime percentage or contractual guarantee. Enterprise customers receive a dedicated 99.95% SLA document with penalties and remedies — contact sales for details.
Can I sign a Data Processing Agreement (DPA)?
Yes. We provide a GDPR-compliant DPA on request for all paid plans. The DPA covers data processing scope, sub-processor lists, breach notification timelines, and data subject rights.
Where is my data stored?
CallSphere infrastructure runs on AWS US-East by default. Enterprise customers can request data residency in the EU (Frankfurt) or Asia-Pacific (Singapore), including on-prem or private-cloud deployment. Contact sales for region-specific deployments.
How are tool permissions managed for AI agents?
Each agent has an explicit tool allowlist defined in the system prompt. Tools like payment processing or appointment booking must be individually enabled. Agents cannot invoke tools that are not on their allowlist.
Do you support SSO and SAML?
SSO via SAML 2.0 and OpenID Connect, with role-based access, is part of Enterprise. Self-serve plans (Answer through Custom Build) use email/password authentication with optional two-factor authentication.
Is there an audit log?
Yes. All agent actions, tool invocations, escalations, and admin changes are recorded in an immutable audit log. Logs are retained for 12 months and can be exported via API or dashboard.
Architecture & Technical
Which LLM providers does CallSphere use?
CallSphere is model-agnostic and supports leading LLMs from OpenAI, Anthropic, and Google. The model is selected per agent based on task complexity, latency requirements, and cost. Custom Build customers can specify a preferred provider.
What is the typical voice response latency?
End-to-end voice latency is under 1.5 seconds for most turns. This includes ASR transcription (~300ms), LLM reasoning (~500ms), and TTS synthesis (~200ms). Network and telephony add ~200-400ms depending on carrier.
What are the layers in the agent architecture?
The architecture has 6 layers: Transport (WebRTC, SIP, WebSocket), Speech (ASR/TTS), Reasoning (LLM with system prompt), Actions (tool calling, API execution), Safety (guardrails, PII redaction), and Integrations (CRM, calendar, payments).
Can I connect custom APIs as agent tools?
Yes. Define a tool with a name, description, and JSON schema for parameters. CallSphere calls your API endpoint when the agent invokes the tool. Authentication supports API keys, OAuth 2.0, and webhook signatures.
How is conversation state managed?
Each conversation maintains a turn-by-turn state object that includes extracted entities, tool results, and context. State persists for the duration of the call or chat session; ask your deployment team about cross-session memory for your workflow.
What happens during a system outage or failover?
CallSphere runs across multiple availability zones. If one zone fails, traffic routes to a healthy zone within 30 seconds. During a full outage, calls forward to your configured fallback number. Chat displays a maintenance message with estimated recovery time.
Integrations & Channels
Does CallSphere support SMS?
Yes. Chat agents can be deployed on SMS (via Twilio or Vonage). The same agent logic, tools, and knowledge base apply across all channels.
Can I bring my own Twilio account (BYOD)?
Yes. Connect your existing Twilio account by providing your Account SID and Auth Token. CallSphere provisions phone numbers and routes calls through your account. You retain full control of your Twilio billing.
Do you support webhooks for real-time events?
Yes. Configure webhooks for events like call started, call ended, escalation triggered, appointment booked, and payment processed. Payloads are signed with HMAC-SHA256 for verification.
Can I upload a knowledge base for the agent?
Yes. Upload PDFs, DOCX files, or plain text to create a knowledge base. CallSphere uses retrieval-augmented generation (RAG) to ground agent responses in your documentation. Knowledge bases refresh within 5 minutes of upload.
Does CallSphere support outbound calling?
Yes. Outbound campaigns can be configured via API or dashboard. Use cases include appointment reminders, payment follow-ups, and survey calls. Outbound calls follow TCPA compliance rules and respect do-not-call lists.
Safety & Guardrails
How does CallSphere prevent hallucinations?
Agents are grounded in structured tools and knowledge bases. When the agent cannot find a factual answer, it says so rather than guessing. System prompts include explicit instructions to avoid fabrication. RAG retrieval provides source attribution.
Can I set topic deny-lists?
Yes. Define topics the agent must refuse to discuss (e.g., competitor pricing, legal advice, medical diagnoses). Denied topics trigger a polite decline response and optionally escalate to a human.
What triggers a human handoff?
Handoff triggers include: customer explicitly requests a human, agent confidence falls below a threshold, conversation exceeds a turn limit, sensitive topics are detected, or a tool execution fails repeatedly. All triggers are configurable per agent.
Does CallSphere redact PII from logs?
Yes. PII redaction is enabled by default for call transcripts and logs. Credit card numbers, SSNs, and health identifiers are masked before storage. Unredacted transcripts are available only to authorized admin roles.
Billing & Onboarding
Is there a free trial?
Eligible first-time subscribers receive a 7-day trial through paid-plan checkout. A payment method is required; checkout shows the trial end date and billing terms.
Can I change plans at any time?
Yes. Move between Answer ($19/mo), Act ($49/mo), Orchestrate ($99/mo), Custom Build ($149/mo) at any time, based on what you need the AI to do — call volume never forces an upgrade. Changes take effect at the next billing cycle, and prorated credits apply when upgrading mid-cycle.
What does onboarding include?
Onboarding includes a kickoff call, system configuration, tool and integration setup, knowledge base upload, testing, and go-live support. Setup and ongoing maintenance are included on every plan, from Answer through Custom Build.
Do you offer annual billing?
Yes. Annual billing saves 20% on every plan: Answer is $15/mo billed $180/yr; Act is $39/mo billed $468/yr; Orchestrate is $79/mo billed $948/yr; Custom Build is $119/mo billed $1,428/yr. Contact sales for multi-year agreements.
Ready to have every call answered, booked, and logged?
Book a 30-minute walkthrough to see how CallSphere AI agents reduce costs, cut response times, and improve customer satisfaction.