Lync asterisk gateway

Dear all,

Our company is implementing lync 2010 as the main telephone system with mediant m1000e-sbc sip gateway. our provider gave us all details which are the ip’s, g711 codec, b2bua, the did’s, udp protocol, etc…The whole installation will be done from external microsoft implementation engineers. As we would like to have a failover solution for the sip gateway, i am wondering if we could implement an asterisk virtual server instead of buying second mediant apliance to be connected to lync in case of sip gateway is destroid? i am an system engineer with litle expirience in asterisk as this is not my area of expertise, but only configured as fxs and fxo gateway to integrate our branches analog pbx’s with iax trunks through asterisk. Anyway i just wanted to know if this is a working solution before i start searching how to do it. thanks in advanced


yes you can use asterisk as sip gateway for lync .

( pay attention that asterisk is using sip over udp by defualt and Lync is using sip over tcp . remember to change parameters in sip.conf to use sip over tcp in asterisk )

Hi omid, Thank you very much for your answer. Regarding asterisk part, i would apriciate it if you have in mind any link to guide me where to configure the settings that my provider gave me, like where should i put the did’s and other settings provider gave me? or should be configured only in lync? i just make a sip peer connection with my provider from asterisk and thats all?. To connect lync with asterisk i know how to do it. I am sorry if this is a very noob question :smile: