Hello. I am mystified with my configuration. I have 7942 ip phone it is supported by my 2921 router with os version 15.2(M4). I was able to configured it successfully last week and it is working well. Since i dont have a full license for unified comm...

good day!   i am currently setting up IP PHONE in my network and i am new to this. i have cisco 2921 router and IP phone 7841. currently my router does not have support for 7841 and i find it difficult to load firmware(loads file) for the said phone....