CM500v modem

I just installed my new modem CM500V.  My internet provider is Cablevision/Optimum.  I was able to get my internet connection right but have no dial tone.  There are 2 phone outlets in the modem - tel 1 and tel 2.  Tel 2 light is blinking but not tel 1.  I connected the phone cord from the phone base directly to Tel 2 but I have no dial tone.  I also tried moving it to Tel 1 (no blinking light) but also did not work.  I called 2x already my Optimum provider and they tried to trouble shoot but no avail.  I hate having a service guy come in my house due to difficulty in scheduling.  Is there anything that needs to be done with the modem to set the phone connection right.  I have done all the possible troubleshooting basics with the provider  - unplugging, reconnecting, etc.  Thanks.