SaaS sales: cold calls not answered because the caller ID showed the wrong company

The SDR team had a new number block, a fresh sequence, and a reasonable list. After two weeks the connect rate was lower than their previous quarter on older numbers. One of the reps mentioned it in a team meeting: "I had a guy pick up and immediately ask why I was calling from a tax office."

The number had a history

The numbers were new to them, but not to the carriers. When a business buys a number that was previously registered to another company, the CNAM record — the name that appears on the recipient's screen — often still shows the old business. Carriers do not automatically update it when ownership changes. The previous tenant of one of their main SDR lines had been a tax consulting firm.

Prospects picking up a call from what their phone said was a tax office were either hanging up quickly or starting the conversation confused. Some were not answering at all — a name you do not recognise, in an industry you are not expecting, is easy to ignore.

Checking what actually displays

The team ran their number block through a CNAM lookup and a caller ID check on the main carriers. Three of the eight numbers in the SDR pool were still showing names from previous registrations. One showed a blank — no name at all, just the number.

They also ran manual call tests from each number — an agent dialling a test handset on each of the main networks — to confirm what was actually arriving on the screen, since CNAM records and what a carrier displays are not always the same thing.

Fixing it took longer than finding it

Submitting a CNAM update is a carrier-side process and does not happen overnight. The team moved flagged numbers out of active use while the update was in progress and ran the corrected numbers through another manual test before putting them back into rotation.

• All new numbers are now tested before the first dial, not after the first week.
• Manual call tests run on at least two different networks.
• CNAM registration is submitted at the point of number purchase, not as an afterthought.

What the team took from it

Connect rate on the corrected numbers recovered to the same level as their older established lines. The head of sales ops put it straightforwardly: "We were doing everything right on the sequence side and handing prospects a reason to dismiss the call before we said a word."

Industry: B2B SaaS · Use case: SDR cold outbound · Team: sales development

If this is your team

Any number that has changed hands is worth checking before it goes into an active SDR pool. Run it through a free caller ID check and a manual call test on at least two networks.

The SIP reseller porting case covers the same underlying issue: porting a number moves the routing, but the name displayed on the receiving end is a separate record that does not follow automatically.