<div>
<div class="content wysiwyg-content">
Hi there, <br />
<br />
I need some clarification on phones and extensions. I have a company with number of different branches and some users are moving to other offices. Is it easy to do call transfer for their work office numbers to the new location. We have cisco digital system in some locations and in others will be analog. <br />
<br />
Also I need to know how we do forwarding if the person has only an internal extension and in terms of direct lines. Also what is the meaning of DID number and other types of phone lines. if there is a general solution in case If I dont know who is the telco or what <br />
<br />
I am sorry but this is something I dont know much. <br />
<br />
Regards,
</div>
</div>


Hi there, 

I need some clarification on phones and extensions. I have a company with number of different branches and some users are moving to other offices. Is it easy to do call transfer for their work office numbers to the new location. We have cisco digital system in some locations and in others will be analog. 

Also I need to know how we do forwarding if the person has only an internal extension and in terms of direct lines. Also what is the meaning of DID number and other types of phone lines. if there is a general solution in case If I dont know who is the telco or what 

I am sorry but this is something I dont know much. 

Regards,

Phone questions and call forwarding

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).

Voice Over IP

Telecommunication occurs when the exchange of information between two or more entities (communication) includes the use of technology. Communication technology uses channels to transmit information (as electrical signals), either over a physical medium (such as signal cables), or in the form of electromagnetic waves. The word is often used in its plural form, telecommunications, because it involves many different technologies.