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using cisco 28xx as gateway for PRI? RRS feed

  • Question

  • Hello,

    We are planning to try to use a cisco 28xx as a PRI gateway for Lync.

    #1-Anyone have experience with this unit? are there any caveats?

    #2-The cisco documentation says it does not support "Call forward on busy" and "attended transfer using lync client". Anyone know what the "call forward on busy" feature is? I didn't think lync client does this. Does it somewhere else?

     

    thanks


    http://windowspbx.blogspot.com
    Thursday, July 14, 2011 3:39 PM

Answers

  • Hi Matt,

     

    You ran into a tech writer trying to prove some kind of point:-) Lync doesnt support call forward on Busy. You still get the alert and are able to redirect from the toast.

     

    Something to be aware of with the ISR is support for Refer using media bypass. If you do not have local SBA or mediation resources at a remote site you can cause some hairpinning across the WAN during a transfer. . There are also some RTCP setting you will need to change to stop call disconnects as well. Other than that they work just fine. The link below should help.

     

    http://voipnorm.blogspot.com/2011/05/important-settings-to-know-when.html

     

    Cheers
    Chris

     

     


    http://voipnorm.blogspot.com/
    Thursday, July 14, 2011 4:04 PM

All replies

  • Hi Matt,

     

    You ran into a tech writer trying to prove some kind of point:-) Lync doesnt support call forward on Busy. You still get the alert and are able to redirect from the toast.

     

    Something to be aware of with the ISR is support for Refer using media bypass. If you do not have local SBA or mediation resources at a remote site you can cause some hairpinning across the WAN during a transfer. . There are also some RTCP setting you will need to change to stop call disconnects as well. Other than that they work just fine. The link below should help.

     

    http://voipnorm.blogspot.com/2011/05/important-settings-to-know-when.html

     

    Cheers
    Chris

     

     


    http://voipnorm.blogspot.com/
    Thursday, July 14, 2011 4:04 PM
  • Thanks Chris for that good advice!
    http://windowspbx.blogspot.com
    Thursday, July 14, 2011 9:42 PM
  • I always and only worked with Cisco ISR routers for PSTN connectivity for Lync, basically because I'm very confortable and accustomed with them (I come from a Cisco UC background).

    For 1# I think that they are quite reliable. If you find a strange behaviour try to update the router to the latest IOS version (the last supported one since 2800 series are end-of-support from Cisco). 

    Friday, January 27, 2017 6:14 PM