Device Trade-In & Upgrade Campaigns
Reach customers who are eligible for device upgrades, present trade-in values, and capture upgrade commitments to drive device revenue.
Why this matters
Reduce churn, drive upgrades, and streamline support with voice automation tailored for wireless and broadband providers. This example shows you how to automate device trade-in & upgrade campaigns calls end-to-end with Guava's SDK — no telephony plumbing, no prompt engineering, just Python.
Installation
Install from Guava's private PyPI index. A public package is coming soon — the install command will simplify to pip install guava.
# Step 1: Install Guava
pip install gridspace-guava --extra-index-url https://guava-pypi.gridspace.com
# Public PyPI package coming soon — the install command will simplify to:
# pip install guava
# Step 2: Set your credentials
export GUAVA_API_KEY="..."
export GUAVA_AGENT_NUMBER="..."How it's built
Every Guava agent is a Python class. Walk through the key sections below, then grab the complete file at the end.
Imports
Import the Guava SDK and any helpers you need. guava.CallController is the base class for every voice agent.
# Install: pip install gridspace-guava --extra-index-url https://guava-pypi.gridspace.com
import guava
import osAgent setup
set_persona() defines how the agent presents itself. set_task() gives it its mission in plain English. The checklist drives the conversation — Guava works through it top-to-bottom, collecting Field values and speaking Say items as it goes.
class DeviceUpgradeBot(guava.CallController):
def __init__(self, customer_name: str, current_device: str, device_age_months: int,
trade_in_value: float, new_device: str, monthly_cost: float):
super().__init__()
self.set_persona(
organization_name="Nexus Mobile Device Team",
agent_name="Cameron",
)
self.set_task(
objective=f"Offer device upgrade to {customer_name} — {current_device} ({device_age_months} months old)",
checklist=[
f"Greet {customer_name} and mention their {current_device} is eligible for a trade-in upgrade.",
guava.Say(f"Trade-in value for their device: ${trade_in_value:.0f}."),
guava.Say(f"Recommended upgrade: {new_device} — as low as ${monthly_cost:.2f}/mo after trade-in credit."),
guava.Field(
key="interested_in_upgrade",
field_type="bool",
description="Is the customer interested in the upgrade?",
),
guava.Field(
key="device_condition",
field_type="choice",
description="Condition of their current device (affects trade-in value)",
choices=["excellent", "good", "fair", "poor / cracked screen"],
required=False,
),
guava.Field(
key="preferred_channel",
field_type="choice",
description="Preferred way to complete the upgrade",
choices=["ship new device and prepaid return box", "nearest store visit",
"have rep call me back with details"],
required=False,
),
guava.Field(
key="wants_device_protection",
field_type="bool",
description="Interested in adding device protection ($12/mo)?",
required=False,
),
"Confirm trade-in details and initiate upgrade order or store appointment.",
],
on_complete=lambda fields: print(f"Device upgrade: {customer_name} — {fields.get('preferred_channel')}"),
)
guava.dial(
controller=DeviceUpgradeBot,
controller_args={"customer_name": "Marcus Howard", "current_device": "iPhone 13",
"device_age_months": 28, "trade_in_value": 380,
"new_device": "iPhone 16 Pro", "monthly_cost": 12.50},
to=os.environ["CUSTOMER_PHONE"],
agent_number=os.environ["GUAVA_AGENT_NUMBER"],
api_key=os.environ["GUAVA_API_KEY"],
)Platform performance
<1s
Response time
99.99%
Uptime SLA
13+
Industries served
Full example
The complete file — copy it, save it as example.py, and run it.
# Install: pip install gridspace-guava --extra-index-url https://guava-pypi.gridspace.com
import guava
import os
class DeviceUpgradeBot(guava.CallController):
def __init__(self, customer_name: str, current_device: str, device_age_months: int,
trade_in_value: float, new_device: str, monthly_cost: float):
super().__init__()
self.set_persona(
organization_name="Nexus Mobile Device Team",
agent_name="Cameron",
)
self.set_task(
objective=f"Offer device upgrade to {customer_name} — {current_device} ({device_age_months} months old)",
checklist=[
f"Greet {customer_name} and mention their {current_device} is eligible for a trade-in upgrade.",
guava.Say(f"Trade-in value for their device: ${trade_in_value:.0f}."),
guava.Say(f"Recommended upgrade: {new_device} — as low as ${monthly_cost:.2f}/mo after trade-in credit."),
guava.Field(
key="interested_in_upgrade",
field_type="bool",
description="Is the customer interested in the upgrade?",
),
guava.Field(
key="device_condition",
field_type="choice",
description="Condition of their current device (affects trade-in value)",
choices=["excellent", "good", "fair", "poor / cracked screen"],
required=False,
),
guava.Field(
key="preferred_channel",
field_type="choice",
description="Preferred way to complete the upgrade",
choices=["ship new device and prepaid return box", "nearest store visit",
"have rep call me back with details"],
required=False,
),
guava.Field(
key="wants_device_protection",
field_type="bool",
description="Interested in adding device protection ($12/mo)?",
required=False,
),
"Confirm trade-in details and initiate upgrade order or store appointment.",
],
on_complete=lambda fields: print(f"Device upgrade: {customer_name} — {fields.get('preferred_channel')}"),
)
guava.dial(
controller=DeviceUpgradeBot,
controller_args={"customer_name": "Marcus Howard", "current_device": "iPhone 13",
"device_age_months": 28, "trade_in_value": 380,
"new_device": "iPhone 16 Pro", "monthly_cost": 12.50},
to=os.environ["CUSTOMER_PHONE"],
agent_number=os.environ["GUAVA_AGENT_NUMBER"],
api_key=os.environ["GUAVA_API_KEY"],
)Run it
Start the agent. It will connect to Guava's infrastructure and begin accepting calls on your assigned number.
python example.py