FAX Machine like using Call Manager Express

Question

Hi to all,
Let me share to your my problem, before we have this analog phone which connect to the our printer to have this fax machine to send fax letters, but since the phone line we used to send fax has been cut, so my boss wants me to set up a fax service using  the extension number that we have in our CME (Call Manager Express) VOIP. can any one help me how to configure and set up one extension number of the VOIP using the Call manager Express Gui v7.1 or using the CLI. since i only have a basic knowledge in networking. 
This topic first appeared in the Spiceworks Community

Answer 1

Much of Cisco's early SIP work involved proof of concept-proving that SIP worked in an IP telephony environment, with traditional features such as caller ID, call hold, call transfer, and three-way calling. Capabilities such as announcing a call transfer to the recipient before connecting the call (which involves setting up a media stream prior to connecting the call) had to be tested to make sure they would work through RTP streams and SIP-to-public switched telephone network (PSTN) gateways. Similarly, TDM out-of-band signaling (which passes information such as caller ID data) had to be passed via the SIP network.
Most of the early adopters of SIP technology were young service provider companies looking to differentiate themselves by providing IP-based services. They include Vonage, the IP-based telecommunications services provider that used Cisco SIP gateways and SIP analog telephone adapters (ATAs) to launch its service in 2001, and B2, a Swedish IP-based telephony service provider. But even companies such as Microsoft saw the promise of SIP as far back as 2001, when it launched the SIP-enabled Windows Messenger Update for its MSN .Net initiative. The Windows Messenger Update enabled MSN users to make SIP-enabled voice over IP (VoIP) calls from the MSN Messenger client, with Cisco providing the SIP infrastructure to Microsoft service provider partners.
Try URL:
http://www.cisco.com/en/US/netsol/ns340/ns394/ns165/networking_solutions_white_paper0900aecd80131325.shtml