As this is the biggest online search engine, if you are not going to be able to find the answer that you are looking for here with regards to the signatures that you are looking for, then it is going to be likely that you are not going to be able to find it anywhere else.
The internet it there for you to use and get all of the information that you are going to need, but it is going to be useless if you are not going to be asking the right things or asking something which is going to be impossible to answer.
Cell phone signatures are obviously something which is very specific and therefore you are going to have to ensure that you ask the question so you are going to the answer that you want. There is no good in asking something that is not going to be able to be answered by the website or the search engine that you are looking at.
Once you have the right question, you are going to find the signatures that you are looking for quickly and without too much difficulty. This is going to ensure that you are going to have the answer that you need as soon as possible so you are not going to have to hunt for too long.