Network improvements will also include HD Voice in the coming weeks

Sprint announced today that its new network, dubbed Sprint Spark, is available in another two U.S. cities. The new network, which takes advantage of three different blocks of spectrum to increase speeds, offers theoretical throughput of up to 60mbps if you have a Spark-capable device. Today's expansion to Philadelphia and Baltimore brings the total number of Sprint Spark cities up to a whopping 14 across the country, although Sprint claims it will hit 100 cities with Spark in the next three years.

In the coming weeks, these two new Sprint Spark markets will also be upgrade to utilize HD Voice. Just like Spark, HD Voice requires a capable handset (and in this case both ends of the call need a capable handset), but if you do have the right phone you'll notice a dramatic improvement in audio quality. Both Sprint Spark and HD Voice are great initiatives for increasing data speeds and call quality, and provided it can roll out the features quickly they can be a great selling point of the Now Network.

Source: Sprint