When i dial its like a rotary phone sound - Uniden Cordless Phone

Whats a rotary phone? J/k we're not that old yet.

Because phone systems are no longer analong. The way a rotary rings is by an increase in line voltage.

If it's rotary then your system was reset already.
When a system defaults it will assign 2 lines to all phones and give Jan 1 as the date.

Change from Rotary to Touch tone is done under Config/Lines/Data

If unsure who to program or navigate or config password then call in a vendor/tech.

two places<br /> 1. Manual switch on back of phone Tone or Pulse<br /> 2. Menu-Set Dial Mode - DTMF (tone) or Pulse

To change the dialing from pulse to dtmf dialing on a prostar 816 you first need to be at a display set (doesn't matter what the extension number is).
with the handset down, enter #20 the screen should say MMC DISABLED
1) enter in 1 2 3 4 1 # (that enables programming)
2) enter in #42 the screen should momentarily say trunk dial typethen display the current programmed data (00000000)
3) enter in 0 for pulse dialing and 1 for dtmf dialing for each of the lines. i.e. touch tone dialing for lines 1-4 would be 11110000. all 8 digits must be entered for the program to accept the data
press # when finished.

I have a similar Panasonic phone (KX_TGA101S).  Someone must have inadvertently changed the dial mode on you.  Here is how you change it on mine, which should be similar to yours.  Hit the Menu button.  Scroll down to "Set tel line" and hit the Menu Button (OK). If it isn't displayed, scroll to "Set Dial Mode" and hit the Menu Button. Select Tone instead of Pulse and hit the Menu Button.  That should do it.

Since you neglected to specify the model of your VTech 5.8GHz phone I can only suggest you enter it into the search box here to download a copy of the manual to see how to switch from pulse to tone dialing.

Lisa, If the 900MHZ phone is Model 26928M programming for rotary dial usually goes like below, can't hurt to try on any model. TONE/PULSE DIALING This adjustment allows you to select tone (touch-tone) or pulse (rotary) mode dialing. The phone is pre-set for touch-tone use. To set to tone or pulse dialing: 1. Press and hold the program button for two seconds. You will hear a beep. 2. Press the *tone button to select Tone Dialing or press #pause to select Pulse Dialing. 3. Press the program button again. You will hear a confirmation tone.

You can download the manual from the link below: http://www.uniden.com/pdf/TRU448-2om.pdf To set tone dialing see picture below: Please update the question & let us know if the information given was useful to you - Good Luck!