Your brother says he can take more calls about Mom. That sounds fair until you try to explain which calls.
The pharmacy calls about a refill. The home care office asks whether a helper can arrive early. Mom calls because she does not recognize a letter. Your sister forwards a message and asks what it means. The clinic leaves a voicemail, then waits for someone to call back. None of these requests looks large by itself. Together, they make you the family switchboard.
The problem is not simply that your phone rings. You are receiving information, deciding what matters, finding the right person, getting an answer, and checking that the answer turned into action. If the family counts only the call, most of your job disappears.
How to tell you have the default contact problem
You probably have it if people contact you even when another sibling owns the task. Your brother handles prescriptions, but the pharmacy number is saved under your name. Your sister takes Mom to an appointment, but you receive the preparation instructions and chase the follow-up. A helper cancels with you because everyone assumes you will find coverage.
Look for questions that arrive without a named destination: Who can take Mom? Did anyone order that? What did the office say? Can somebody call them? If you answer because silence would leave Mom exposed, the family has assigned you the work without saying so.
Another sign is that other people can complete a task only after you prepare it. You find the number, explain the history, send the paperwork, remind the sibling, and ask what happened afterward. The visible assignment belongs to someone else. The setup and recovery still belong to you.
You may also notice that a break is not really a break. Calls still reach you. You remain available to explain where things are, decide whether a change matters, and repair missed handoffs. Coverage of the visit is not coverage of the contact job.
Build the contact ledger
Do not begin with a family debate about who cares more. Begin with one ordinary run of incoming work. Follow each item from arrival to closure.
For every call, text, portal message, letter, or question, write down six line items: who sent it, what they wanted, who received it, what decision or action followed, who completed that action, and who confirmed it was done. Add the place where the final record lives.
A pharmacy message may become several entries: receive refill request, check what Mom has left, contact the prescriber, confirm the pharmacy received the order, arrange pickup, and tell Mom what changed. That is not one phone call. It is a chain with several chances to break.
Include the contacts that never become formal tasks. You explain a bill to Mom, calm a sibling who misunderstood a message, give a helper the garage instructions, or notice that two appointments conflict. These are still parts of the job because the care plan depends on them.
If you need a simple place to begin, use the ledger approach described at Start here. The point is not to prove that you are busiest. It is to make the work assignable.
Separate receiving from deciding
Being listed as Mom's contact does not automatically give you authority to make every decision. Receiving a message, discussing options with Mom, acting under a document, paying a bill, and making a health care choice are different jobs.
For each organization that calls you, ask what its record says you are: a person to notify, an emergency contact, someone Mom authorized to receive information, an account contact, or an agent acting under a document. Ask what the organization will and will not let that person do.
Then compare that answer with Mom's actual paperwork and wishes. In Missouri, the authority granted through a power of attorney depends on the document and the subject it covers. A name in a phone field is not a substitute for reading the document. If the family is unsure what a document permits, put that question in its own lane for the appropriate office or a Missouri lawyer. Do not settle it by group-text vote.
If you manage Mom's money under formal authority, keep that work separate from ordinary family errands. Record what came in, what went out, why it was for Mom, and where the supporting record is kept. The CFPB's public guidance treats careful records and separation of funds as basic parts of managing another person's money. Our Sources page shows the public materials behind this approach.
Find the hidden triage job
The default contact does more than relay messages. You sort them. You decide which one can wait, which sibling needs it, whether Mom has already answered, and whether a second call is required. That sorting is labor.
Mark each ledger entry with the reason it came to you. Common reasons include your number being on the account, Mom calling you first, a sibling not responding, only you knowing the history, or an office having no other contact. The reason tells you what has to change.
If your number is the only one on file, the repair may be an updated contact record. If only you know the history, the repair may be a shared summary. If a sibling owns the task but does not respond, the repair needs an escalation rule. If Mom chooses to call you first, keep her preference visible while deciding which follow-up work someone else can carry.
Do not call every unanswered message urgent. Ask what happens if nobody responds, how soon an answer is actually needed, and who should receive the next call. That turns urgency from a feeling into an instruction.
Hand off a whole contact lane
A useful handoff names a lane, not a promise to help. One sibling might take every pharmacy contact from first message through confirmed pickup. Another might own home-maintenance calls from scheduling through proof that the work is complete. You might keep clinic scheduling while someone else receives transportation changes.
For each lane, write down the primary person, backup person, response window, decisions that still belong to Mom, questions that require documented authority, and the point when the issue returns to the family. Also name where messages and completion notes go.
Test one lane with a real item. Send the contact information and existing records, then step out. If the new owner immediately needs you to interpret every message, the lane is missing instructions or history. Repair the lane instead of quietly taking it back.
Family Caregiver Alliance materials treat arranging and coordinating care as part of caregiving, not background noise. Missouri caregiver programs also recognize help finding and gaining access to services as caregiver support. That matters here: the person connecting every office, helper, sibling, and task is doing care work even when she never leaves her kitchen.
Know when the problem is fixed
The problem is not fixed because your siblings agree that you do a lot. It is fixed when contacts travel to the person who owns the next action, that person can finish without your supervision, and the result is recorded where the family can find it.
Check the next ordinary care cycle. Did a message bypass the assigned person and return to you? Did someone complete the visible errand while leaving you to arrange it? Did Mom know whom to call? Did the backup know when to step in? Did any money task lose its receipt or explanation?
If several lanes still depend on you, show the ledger at the next family meeting. Do not argue from exhaustion alone. Point to the intake, sorting, follow-up, records, and backup that remain under your name. Then ask which complete lane each person will own.
If your family needs St. Louis County or Missouri caregiver contacts, begin with Local help. Outside help can connect you with services, but the family still has to name who receives the call and carries it to the finish.
You are not asking everyone to answer every message. You are asking the family to stop treating one person's constant availability as a system.