Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
BlackBerry Bold
Table title:
BlackBerry 7 series
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=1 > Model </th><th colspan=1 rowspan=1 > BlackBerry Bold 9900 </th><th colspan=1 rowspan=1 > BlackBerry Bold 9930 </th><th colspan=1 rowspan=1 > BlackBerry Bold 9790 </th></tr>
<tr> <td colspan=2 rowspan=1 > Image </td><td colspan=1 rowspan=1 > BlackBerry Bold 9900 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=2 rowspan=1 > Announce Date </th><td colspan=2 rowspan=1 > August 3, 2011 </td><td colspan=1 rowspan=1 > November 15, 2011 </td></tr>
<tr> <th colspan=2 rowspan=1 > Display </th><td colspan=2 rowspan=1 > 640 x 480 px 2.8 inch TFT LCD (built on 88 µm pixel) at 287 ppi </td><td colspan=1 rowspan=1 > 480 x 360 px 2.45 inch TFT LCD (built on 100 µm pixel) at 246 ppi </td></tr>
<tr> <th colspan=2 rowspan=1 > Processor </th><td colspan=2 rowspan=1 > Qualcomm Snapdragon 2 MSM8255T processor 1.2 GHz </td><td colspan=1 rowspan=1 > Marvell Tavor MG1 PXA940 1 GHz </td></tr>
<tr> <th colspan=2 rowspan=1 > GPU </th><td colspan=2 rowspan=1 > Adreno 205 </td><td colspan=1 rowspan=1 > PowerVR SGX 543 GPU </td></tr>
<tr> <th colspan=2 rowspan=1 > RAM </th><td colspan=3 rowspan=1 > 768 MB </td></tr>
<tr> <th colspan=2 rowspan=1 > Storage </th><td colspan=3 rowspan=1 > 8 GB Internal Storage microSD slot </td></tr>
<tr> <th colspan=2 rowspan=1 > Inputs </th><td colspan=3 rowspan=1 > Multi-touch touchscreen, volume controls, proximity and ambient light sensors, 3-axis accelerometer, Digital Compass, GPS/aGPS </td></tr>
<tr> <th colspan=2 rowspan=1 > Connectivity </th><td colspan=3 rowspan=1 > 802.11a/b/g/n Dual band Bluetooth 2.1 + A2DP + EDR Near field communication </td></tr>
<tr> <th colspan=1 rowspan=3 > Compatible Networks </th><th colspan=1 rowspan=1 > GSM/GPRS/EDGE </th><td class="highlighted"  colspan=3 rowspan=1 > 850/900/1800/1900 MHz </td></tr>
<tr> <th colspan=1 rowspan=1 > UMTS/HSPA </th><td colspan=1 rowspan=1 > 2100/1900/850/800 MHz (RDE7*UW/RDY7*UW) or 2100/1700/900 MHz (RDV7*UW) </td><td colspan=1 rowspan=1 > 2100/900 MHz </td><td colspan=1 rowspan=1 > 2100/1900/850/800 MHz (REC71UW) or 2100/1700/900 MHz (RED71UW) </td></tr>
<tr> <th colspan=1 rowspan=1 > CDMA/EVDO </th><td colspan=1 rowspan=1 > N/A </td><td class="highlighted"  colspan=1 rowspan=1 > 800/1900 MHz </td><td colspan=1 rowspan=1 > N/A </td></tr>
<tr> <th colspan=2 rowspan=1 > HSDPA </th><td colspan=2 rowspan=1 > 14.4 Mbit/s </td><td colspan=1 rowspan=1 > 7.2 Mbit/s </td></tr>
<tr> <th colspan=2 rowspan=1 > HSUPA </th><td colspan=3 rowspan=1 > 5.76 Mbit/s </td></tr>
<tr> <th colspan=2 rowspan=1 > Operating system </th><td colspan=4 rowspan=1 > BlackBerry OS 7 </td></tr>
<tr> <th colspan=2 rowspan=1 > Battery </th><td colspan=1 rowspan=1 > 1230 mAH Replaceable Lithium-ion polymer battery 12.8 days standby (GSM/UMTS) 6.3 hours talk (GSM) 5.9 hours talk (UMTS) 50 hours music playback </td><td colspan=1 rowspan=1 > 1230 mAH Replaceable Lithium-ion polymer battery 12.8 days standby (CDMA/GSM/UMTS) 6.6 hours talk (CDMA) 6.3 hours talk(GSM) 5.9 hours talk (UMTS) 50 hours music playback </td><td colspan=1 rowspan=1 > 1230 mAH Replaceable Lithium-ion polymer battery 18 days standby (GSM) 17 days standby (UMTS) 5.2 hours talk(GSM) 5.3 hours talk (UMTS) 33 hours music playback 6.3 hours video playback </td></tr>
<tr> <th colspan=2 rowspan=1 > Weight </th><td colspan=2 rowspan=1 > 130 g (4.6 oz) </td><td colspan=2 rowspan=1 > 107 g (3.8 oz) </td></tr>
<tr> <th colspan=2 rowspan=1 > Dimensions </th><td colspan=2 rowspan=1 > 115 mm × 66 mm × 10.5 mm (4.53 in × 2.60 in × 0.41 in) </td><td colspan=2 rowspan=1 > 110 mm × 60 mm × 11.4 mm (4.33 in × 2.36 in × 0.45 in) </td></tr>
<tr> <th colspan=2 rowspan=1 > Camera </th><td colspan=2 rowspan=1 > 5 megapixel 4x digital zoom Flash HD video (720p) at 30 fps </td><td colspan=2 rowspan=1 > 5 megapixel Continuous auto focus 2x digital zoom Flash VGA at 30 fps </td></tr>
</table>
Question:
Which networks do the Bold 9930 and bold 9900 operate on?
Answer:
The Bold 9930 operates on both GSM and CDMA networks whereas the Bold 9900 can only function on the GSM network.