Chapter Phone Numbers

A Chapter Phone Number is a local US phone number created alongside one of your Chapters. Upon signing up to Solidarity Tech, you choose your initial Chapter Phone Number during the onboarding process. Any additional Chapter Phone Numbers are created when you create a new Chapter. Multiple Chapters can also share the same phone number if desired.

When communicating with a Person, calls and texts are sent from the Chapter Phone Number associated with that context. For People who belong to multiple Chapters, each Chapter relationship has its own conversation, so a Person in both the LA Chapter and NYC Chapter will have separate text threads with each Chapter's phone number. This ensures that communications stay organized and that People always know which part of your organization is reaching out. Encourage your supporters to save each Chapter's number to their contacts.

Call Action numbers are the other type of phone number used by Solidarity Tech. These are temporary local phone numbers associated with a Call Legislator Page.

Avoiding Spam Labels

When your organization registers with an EIN, Solidarity Tech automatically enrolls your phone numbers in SHAKEN/STIR (call authentication) and Voice Integrity (verified business identity). These industry standard programs prove to carriers that your calls come from a legitimate source, significantly reducing the chance of a "Spam Likely" label. If you did not register with an EIN during onboarding, you can upgrade at any time at Settings > 10DLC Compliance.

New Chapter Phone Numbers (including swapped numbers) are automatically enrolled in these programs.

You can further improve deliverability by:

• Registering with the Free Call Registry: Particularly useful for the T-Mobile network.
• Enabling Branded Calls: Displays your organization name in the caller ID, increasing answer rates.
• Asking supporters to save your number: Carriers are far less likely to flag calls from a saved contact.

Phone Number Hygiene

Solidarity Tech monitors the health of each Chapter Phone Number and displays a hygiene badge in Settings > Phone Numbers, calculated from the last 30 days of data.

• Green (Good): No significant reputation issues.
• Yellow (Warning): Moderate deliverability or pickup concerns. Monitor the trend.
• Red (Poor): Significant reputation problems. Consider swapping the number.

Hover over the badge for a detailed breakdown:

• Number Health: How often your messages are filtered or blocked by carriers due to the phone number itself. This is the key metric for deciding whether a swap is needed.
• Data Quality: Failures from bad contact data (invalid numbers, landlines, opt outs). These are not the phone number's fault and do not affect the badge color.
• Overall SMS Success: Percentage of texts delivered out of all texts sent.
• Calling Pickup Rate: Percentage of outgoing calls answered.

Swapping a Phone Number

If a number's hygiene is consistently poor, or supporters report persistent spam labels, you can swap it for a new number in the same area code. This is a last resort; in most cases the automatic protections above are sufficient.

⚠️

Swapping permanently deletes the old number and cannot be undone.

To swap a number:

1. Go to Settings > Phone Numbers and expand Chapter Phone Numbers.
2. Hover over the row and click "swap number".
3. Review the confirmation modal (it shows how many people are assigned and which area code will be used).
4. Type "permanently swap" and submit.

All assigned people, conversations, and chapter associations are automatically transferred to the new number. The new number is enrolled in SHAKEN/STIR and Voice Integrity immediately.

When to swap vs. when to wait:

• Swap when the Number Health metric shows a sender reputation failure rate above 3% and the badge has been red for several days.
• Wait if the issues are primarily data quality (bad numbers, opt outs), or if you recently enabled Branded Calls or upgraded your brand registration, since carrier database updates can take several weeks.