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dear all<br />
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<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; call &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; wan link (e1) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; call<br />
&nbsp; &nbsp; &nbsp; manager4.1.......3640xm...<wbr />..........<wbr />..........<wbr />..........<wbr />..2621xm..<wbr />...manager<wbr />4.1<br />
&nbsp;(100 ip phones) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ( 50 ip phones)<br />
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&nbsp;i want the configuration for this scenario.and also want to know is there any voice protocol is needed on the wan link for the communication? or the routing protocols is enough?all are cisco products ip phone ,router,call manager etc.
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dear all


          call                                       wan link (e1)                           call
      manager4.1.......3640xm...................................2621xm.....manager4.1
 (100 ip phones)                                                                     ( 50 ip phones)

 i want the configuration for this scenario.and also want to know is there any voice protocol is needed on the wan link for the communication? or the routing protocols is enough?all are cisco products ip phone ,router,call manager etc.

configuration of router

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).