Why This Matters
When a consumer calls your business for a service you can't provide, you may transfer that call to us so we can help them instead. For this to work well, we need to see the consumer's original phone number on the call — not your company's number.
The consumer's number lets us:
Reach them back if the call drops
Match the call to the correct referral record
Avoid confusing or duplicate entries tied to your company's number instead of the consumer's
The Core Issue
Most phone systems offer two different ways to connect a call to a third party, and they behave very differently:
True Transfer (blind or warm/attended transfer) — hands the original call off to us. The consumer's number is preserved because it's still the same call, just redirected.
Merge / Conference / 3-Way Calling — creates a brand-new outbound call from your line to us, then bridges it with the consumer's call. Because this second call originates from your phone system, we see your company's number instead of the consumer's.
The fix in one sentence: Use your phone system's Transfer feature — not Merge, Conference, or "Add Call" — whenever you hand a consumer off to us. |
Set Up Instructions by Phone System
Find the section below that matches how your team takes calls. If you use more than one type of phone system, share the relevant section with each team.
1. Mobile Phones (iPhone / Android)
Native "merge calls" on a mobile phone is a 3-way call, not a true transfer — it will show the consumer our company's number, not theirs.
Recommended approach:
Check with your mobile carrier whether your plan includes a true "Call Transfer" feature (separate from 3-way calling). Many business and postpaid plans support this, often using a hold + transfer code (for example, flash/hold, dial the destination, then hang up).
If your carrier supports it, use that Transfer feature — not the "Add Call" or "Merge Calls" button — to hand the consumer's call to our number.
If your carrier does not support a true network transfer, use the fallback method in the "When a True Transfer Isn't Possible" section below.
Note: standard consumer mobile plans often don't include a true call-transfer feature, since it depends on network/carrier support rather than the phone itself. If you're unsure, ask your carrier directly whether "call transfer" (not conference calling) is available on your line.
2. VoIP / Cloud Phone Systems (RingCentral, Vonage, Grasshopper, 8x8, Dialpad, Nextiva, etc.)
Cloud phone systems almost always support a true call transfer that preserves the original caller ID — but it has to be the Transfer button, not Conference or Merge.
Recommended approach:
During the call, look for a "Transfer" option (sometimes split into "Blind Transfer" and "Warm/Attended Transfer"). Avoid "Conference," "Merge," or "Add Participant."
Enter our number and complete the transfer. A warm transfer (where you briefly speak to us before dropping off) is usually preferred, since it lets you confirm we've picked up before you leave the call.
In your system's admin portal, confirm that "Caller ID pass-through" (sometimes called "preserve original caller ID" or "transfer caller ID") is enabled for outbound transfers. This setting is occasionally off by default and controlled by an account admin, not the person on the call.
If your admin portal doesn't show this setting, contact your VoIP provider's support team and ask specifically: "Does our call transfer feature preserve the original caller's number to the receiving party?"
3. Office / Desk Phones (PBX Systems — Avaya, Cisco, Polycom, Yealink, Mitel, etc.)
Desk phone systems typically have a physical or on-screen "Transfer" button separate from "Conference." The same rule applies: Transfer preserves the caller's number; Conference does not.
Recommended approach:
Press Transfer (not Conference), dial our number, and complete the transfer — either as a blind transfer or after a brief warm introduction.
Ask your phone system administrator or IT vendor to confirm that outbound transfers are configured to pass through the original caller ID rather than substituting your main company line.
If your PBX routes calls through a SIP trunk provider, this pass-through setting may need to be enabled on the trunk provider's side as well — your IT contact or vendor can confirm this.
How to Test Your Setup
Before relying on this for real consumer calls, do a quick test:
Have a colleague call your business line from their personal cell phone.
Answer the call, then use your Transfer (not Merge/Conference) feature to send it to our number.
Ask us (or check your own caller ID log) to confirm whose number showed up — it should be your colleague's cell number, not your company's.
If your company's number still shows up after using Transfer, the pass-through setting likely needs to be enabled by an administrator or your phone provider — see the relevant section above.
What Happens When Calls Come In With No Tracking
If a call comes into our team showing your company's main number instead of the consumer's number, we may not be able to tell right away that it's linked to your business. Here's what happens on our end:
Our team identifies the issue. If we notice a call coming in without a trackable consumer number, our team flags it internally.
We investigate and reach out. Our support team will review how your calls are being transferred and contact you directly to understand your phone system setup.
We work with you to fix the root cause. Together, we'll figure out whether the issue is a settings change (like enabling caller ID pass-through) or a transfer method change (like switching from Merge/Conference to Transfer).
This process exists so that untracked calls get resolved quickly rather than repeatedly slipping through — but it works best when the root cause (your transfer configuration) gets fixed rather than relying on workarounds long-term.
Important: We Will Not Transfer Calls with No Tracking Data
If we identify that a call is coming in untracked, we will not perform a warm transfer to complete the connection — doing so would prevent the call from ever being tracked, even after the fact.
Instead, we will text the consumer directly with the contact information for a company in our network who can help them. This ensures the consumer still gets connected to the right service, while keeping our tracking and referral records intact.
Tips for Contacting Your Phone Provider
Front-line support reps often don't recognize the term "caller ID pass-through" right away, or they hear "transfer" and assume you mean call forwarding to voicemail. Being specific gets you to the right answer (or the right specialist) faster.
What to Ask For
Script to use: "I need to set up outbound call transfers so that when we transfer a call to another business, they see the original caller's phone number — not our company's main number. Does our plan/system support caller ID pass-through on transfers, and how do I turn it on?" |
If the first rep seems unsure, ask to be escalated to a technical support tier or account specialist — this is a configuration-level question, not a basic account question.
Key Terms to Use (and What They Mean)
"Caller ID pass-through" or "transfer caller ID" — the setting that controls whether the original caller's number shows up after a transfer. This is the main term to lead with.
"True transfer" or "network transfer" — distinguishes what you want from 3-way calling/conferencing. Useful for mobile carriers, since it clarifies you're not asking about "merge calls."
"Blind transfer" vs. "warm/attended transfer" — the two standard types of true transfer on VoIP/PBX systems. You don't need to pick one when asking; just confirm both preserve the original number.
"SIP REFER" — the underlying method many VoIP/PBX transfers use to hand off a call while keeping the original caller ID. You don't need to bring this up yourself, but if a technical rep mentions it, that's a good sign they understand the request.
"SIP trunk provider" — if your office phone system connects through a separate trunk provider (ask your IT contact if unsure), that provider may also need to enable pass-through on their side, separate from your phone system's own settings.
Questions Worth Asking Directly
"Does our plan support true call transfer, separate from 3-way/conference calling?"
"Is caller ID pass-through enabled by default, or does someone need to turn it on for our account?"
"Is this something I can enable myself in the admin portal, or does it require your team to change it on the backend?"
"Are there any restrictions — like the destination number needing to be a business line, or a limit on international/toll-free transfers — that would stop this from working?"
"Can you confirm this is active, and is there a way for me to test it before I rely on it?"
If You Get Pushback
A few things that can help move the conversation forward:
Clarify you are not asking about caller ID spoofing (showing a number that isn't actually calling) — you're asking about a standard transfer feature that keeps the real, original caller's number intact. Providers sometimes conflate the two.
Mention this is for business call-referral purposes, not personal use — some providers gate this feature behind business or professional plan tiers.
If your plan doesn't support it, ask directly: "What's the lowest-tier plan or add-on that includes true call transfer with caller ID pass-through?"
Questions about your specific phone system or provider? Reach out to your account manager and we'll help you get this set up.