Hi Matt, Thanks a lot for your reply. Since we cannot control any DNS zone, we setup our own DHCP server (i.e.,ns.ims.research.ibm.com) and serving the zone " ims.research.ibm.com". We setup static IP with static DNS server (point to ns.ims.research.ibm.com) for all the nodes. All nodes can reach our DNS server and resolve (e.g., ellis.ims.research.ibm.com can be resolve by every nodes even the clients) correct. However, our DNS doesn't has the entry for 2.5.7.0.5.5.5.0.5.6.e164.arpa.
Is there anything wrong with our setup ? Thanks a lot. Starsky H.Y. Wong Starsky H.Y. Wong On Sat, Aug 10, 2013 at 12:03 PM, Matt Williams < [email protected]> wrote: > Starsky,**** > > ** ** > > Good investigation - well done finding those logs!**** > > ** ** > > I think the issue here is that the DNS server configured via DHCP is > unreachable. Clearwater uses the DNS server for ENUM lookups (to resolve > directory numbers to SIP URIs). **** > > ** ** > > Technically, you dialed by SIP URI rather than directory number but since > very few SIP clients actually support TEL URIs, Clearwater tries an ENUM > lookup if the username part of the SIP URI consists solely of digits. It's > fine for the ENUM lookup to return no response - in that case, Clearwater > just uses the original URI. Unfortunately, if the ENUM lookup times out, > we treat this as an error and fail the call.**** > > ** ** > > Please can you check which DNS server your DHCP server is configuring, and > whether it's reachable? If the DNS server isn't reachable, please can you > either correct it, or stop the DHCP server from configuring the DNS server? > **** > > ** ** > > Thanks, **** > > ** ** > > Matt**** > > ** ** > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Starsky > Wong > *Sent:* 09 August 2013 22:04 > *To:* clearwater > *Subject:* [Clearwater] Two online client cannot communicate to each other > **** > > ** ** > > Hi,**** > > ** ** > > I create 2 clients and each of them can be online seperately. However, > when I tried to make a two way call, the connection doesn't success. I dig > some of the log files, here is what I found**** > > ** ** > > It is client 6505550822 calling 6505550752**** > > ** ** > > 09-08-2013 20:57:48.012 Warning enumservice.cpp:374: Enum lookup did not > complete for user 6505550752**** > > 09-08-2013 20:57:48.313 Warning dnsresolver.cpp:236: DNS ENUM query failed > for host 2.5.7.0.5.5.5.0.5.6.e164.arpa: Timeout while contacting DNS servers > **** > > ** ** > > Any ideas for what I missed ? Thanks a lot.**** > > ** ** > > > **** > > Starsky H.Y. Wong**** >
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