Webcam monthly download limit

My partner is working away for three months, she has a laptop and webcam so she can have video chats with me and the kids. It is connected via a 3g card with a 250Mb monthly limit. I'm new to webcams and haven't a clue what this means. Does anyone out there know how many hours of "airtime" this 250Mb limit will give us, or will the webcam drain it quite quickly ? Many thanks.

AFAIK it depends on the settings such as image size, image format, frequency of updates. However I suggest you to use a free bandwidth meter to measure traffic generated by webcam software you use.

BWMeter is a freeware powerful bandwidth meter, monitor and traffic
controller, which measures, displays and controls all traffic
to/from your computer or on your network. Unlike other products,
it can analyze the data packets (where they come from, where they
go, which port and protocol they use). This makes it possible to
distinguish between local and internet traffic for example. BWMeter
can also be used for traffic control by setting a speed limit for
all kinds of connections or restricting access to certain internet
sites. It creates statistics for all computers in your network,
measuring and displaying all LAN traffic as well as download /
upload from the internet. You can even define filters which show
your transfer with certain internet addresses (e.g. to see how much
data you download from your favorite news server). BWMeter is ideal
for home users to get an overview of how much bandwidth they use,
as well as small to large businesses, where one computer can
control the traffic and maintain the statistics of downloaded /
uploaded data of all computers in the network. The product is easy
to configure and offers a rich set of options and features for
beginners as well as experts and network administrators.

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