Hi,

Need your guidance for selecting the best solution to implement. We  are planning to move to ip phones + Lync phones for the head office and we having analog phone in branch offices. could you please suggest some best layouts (with devices) for implement this ?

Hello RajithPa,

You have a couple of options regarding your voice setup.

Option 1) You replace your PBX with Lync server, in this case Lync server will integrate with the PSTN through direct SIP trunk if your local PSTN provider supports SIP. If not then you'll need a media gateway between Lync and PSTN. This media gateway will also be used to connect your analog phones to it. 

Option 2) Keep your PBX and integrate it with Lync, still via SIP trunk if the PBX supports it, and through a media gateway if you have a legacy PBX that doesn't support SIP.

As for the devices you may want to use, you can visit this page, it shows all the qualified PBXs, media gateways and ip phones that you can use with Lync.

https://technet.microsoft.com/en-us/office/dn788945.aspx?f=255&MSPPError=-2147217396

Hope this helps,

-------------------------------------------------------

Muhammad Hazem

uchazem.wordpress.com

Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer"

• Proposed as answer by Eason HuangMicrosoft contingent staff, Moderator 4 hours 26 minutes ago

Hello RajithPa,

You have a couple of options regarding your voice setup.

Option 1) You replace your PBX with Lync server, in this case Lync server will integrate with the PSTN through direct SIP trunk if your local PSTN provider supports SIP. If not then you'll need a media gateway between Lync and PSTN. This media gateway will also be used to connect your analog phones to it. 

Option 2) Keep your PBX and integrate it with Lync, still via SIP trunk if the PBX supports it, and through a media gateway if you have a legacy PBX that doesn't support SIP.

As for the devices you may want to use, you can visit this page, it shows all the qualified PBXs, media gateways and ip phones that you can use with Lync.

https://technet.microsoft.com/en-us/office/dn788945.aspx?f=255&MSPPError=-2147217396

Hope this helps,

-------------------------------------------------------

Muhammad Hazem

uchazem.wordpress.com

Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer"

• Proposed as answer by Eason HuangMicrosoft contingent staff, Moderator Wednesday, July 08, 2015 2:59 AM

Hello RajithPa,

You have a couple of options regarding your voice setup.

Option 1) You replace your PBX with Lync server, in this case Lync server will integrate with the PSTN through direct SIP trunk if your local PSTN provider supports SIP. If not then you'll need a media gateway between Lync and PSTN. This media gateway will also be used to connect your analog phones to it. 

Option 2) Keep your PBX and integrate it with Lync, still via SIP trunk if the PBX supports it, and through a media gateway if you have a legacy PBX that doesn't support SIP.

As for the devices you may want to use, you can visit this page, it shows all the qualified PBXs, media gateways and ip phones that you can use with Lync.

https://technet.microsoft.com/en-us/office/dn788945.aspx?f=255&MSPPError=-2147217396

Hope this helps,

-------------------------------------------------------

Muhammad Hazem

uchazem.wordpress.com

Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer"

• Proposed as answer by Eason HuangMicrosoft contingent staff, Moderator Wednesday, July 08, 2015 2:59 AM
• Marked as answer by Eason HuangMicrosoft contingent staff, Moderator 1 hour 3 minutes ago

Hello RajithPa,

You have a couple of options regarding your voice setup.

Option 1) You replace your PBX with Lync server, in this case Lync server will integrate with the PSTN through direct SIP trunk if your local PSTN provider supports SIP. If not then you'll need a media gateway between Lync and PSTN. This media gateway will also be used to connect your analog phones to it. 

Option 2) Keep your PBX and integrate it with Lync, still via SIP trunk if the PBX supports it, and through a media gateway if you have a legacy PBX that doesn't support SIP.

As for the devices you may want to use, you can visit this page, it shows all the qualified PBXs, media gateways and ip phones that you can use with Lync.

https://technet.microsoft.com/en-us/office/dn788945.aspx?f=255&MSPPError=-2147217396

Hope this helps,

-------------------------------------------------------

Muhammad Hazem

uchazem.wordpress.com

Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer"

• Proposed as answer by Eason HuangMicrosoft contingent staff, Moderator Wednesday, July 08, 2015 2:59 AM
• Marked as answer by Eason HuangMicrosoft contingent staff, Moderator Monday, July 13, 2015 6:24 AM

Hi,

Agree with Hazem 147.

What's more, for branch site, you may need to deploy a SBA for PSTN call if the network between central site and branch site down.

More details for Lync EV:

https://technet.microsoft.com/en-us/library/gg425749(v=ocs.15).aspx

Best Regards,
Eason Huang