Plivo vs Vobiz: Phone Numbers & DID API

Plivo splits number management across PhoneNumber (search the carrier catalog and buy) and Number (manage numbers you own); Vobiz folds both into a single phone_numbers resource backed by an inventory model - you buy by E.164 from Vobiz’s pre-provisioned stock. A 15-day DID cool-off applies on sub-account moves.

Plivo → Vobiz mapping

Operation	Plivo (endpoint / Python SDK)	Vobiz (endpoint / Python SDK)
Search available numbers	`GET /v1/Account/{auth_id}/PhoneNumber/` · `client.numbers.search(country_iso, type, pattern, ...)`	`GET /api/v1/Account/{auth_id}/inventory/numbers` · `client.phone_numbers.list_inventory_numbers(auth_id, country=, search=)`
Buy / rent a number	`POST /v1/Account/{auth_id}/PhoneNumber/{number}/` · `client.numbers.buy(number, app_id, ...)`	`POST /api/v1/Account/{auth_id}/numbers/purchase-from-inventory` · `client.phone_numbers.purchase_from_inventory(auth_id, e164, currency=)`
List owned numbers	`GET /v1/Account/{auth_id}/Number/` · `client.numbers.list(...)`	`GET /api/v1/Account/{auth_id}/numbers` · `client.phone_numbers.list_numbers(auth_id, limit=, offset=)`
Update a number (app, alias, subaccount)	`POST /v1/Account/{auth_id}/Number/{number}/` · `client.numbers.update(number, app_id=, subaccount=, alias=)`	Per-action endpoints - `assign_number_to_trunk` / `assign_did_to_subaccount`
Release / unrent a number	`DELETE /v1/Account/{auth_id}/Number/{number}/` · `client.numbers.delete(number)`	`DELETE /api/v1/Account/{auth_id}/numbers/{e164}` · `client.phone_numbers.unrent_number(auth_id, e164)`
Attach number to an app / route inbound	`update(number, app_id=...)` (Plivo Application)	`POST /api/v1/Account/{auth_id}/numbers/{phone_number}/assign` · `client.phone_numbers.assign_number_to_trunk(auth_id, phone_number, trunk_group_id)`
Detach inbound routing	`update(number, app_id="")`	`DELETE /api/v1/Account/{auth_id}/numbers/{phone_number}/assign` · `client.phone_numbers.unassign_number_from_trunk(auth_id, phone_number)`
Assign a number to a sub-account	`update(number, subaccount=...)`	`POST /api/v1/account/{auth_id}/numbers/{e164}/assign-subaccount` · `client.phone_numbers.assign_did_to_subaccount(auth_id, e164, sub_account_id)`
Remove a number from a sub-account	`update(number, subaccount="")`	`DELETE /api/v1/account/{auth_id}/numbers/{e164}/assign-subaccount` · `client.phone_numbers.unassign_did_from_subaccount(auth_id, e164, force=)`

Before / after: buy a number

Plivo POSTs to the specific {number} path and can attach a Plivo Application at buy time. Vobiz POSTs the E.164 (with the leading +) to a single purchase-from-inventory endpoint, which debits setup_fee + monthly_fee from your balance (for an SA_ sub-account, the parent MA_ is charged). After purchase the number is owned - assign it to a trunk to take inbound calls.

Plivo

client.numbers.buy(
    number="14155551234",
    app_id="2087965050567",   # attach to a Plivo Application at buy time
)

Vobiz

client.phone_numbers.purchase_from_inventory(
    auth_id="MA_XXXXXX",
    e164="+14155551234",
    currency="USD",            # defaults to the number's currency or USD
)

Key differences & gotchas

E.164 formatting varies by endpoint. purchase_from_inventory takes the number with the leading + in the body; unrent_number takes it without the + in the path; trunk/sub-account assignment endpoints take it URL-encoded (%2B14155551234).
Routing is by trunk. Vobiz routes inbound by an explicit assign/unassign to a trunk_group_id (a UUID); assign a freshly purchased number to a trunk to route it.
15-day DID cool-off on sub-account moves. unassign_did_from_subaccount returns 409 did_cool_off_in_effect if the DID took a call in the last 15 days; never-used DIDs move immediately, and admins can bypass with force=true.
Sub-account assignment uses a lowercase account path (/api/v1/account/...), unlike the capital-Account of every other number endpoint - the SDK hides this, but raw HTTP callers must match the casing.

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Plivo vs Vobiz: Phone Numbers & DID API

Plivo → Vobiz mapping

Before / after: buy a number

Key differences & gotchas

​Plivo → Vobiz mapping

​Before / after: buy a number

​Key differences & gotchas

Plivo → Vobiz mapping

Before / after: buy a number

Key differences & gotchas