Problems with Cisco ATA 186

[nikolaratkovic]

I have strange problem with my ATA device ... I'm using CUCM 6.0.

When I called analog cordless phone from any local IP phone, I get busy tone. If I make a call from any external phone (IP, mobile or analog) there is no problems. CSS i used same as for IP phones.

Same problems with FAX!

[mudmathu]

Hi

Can you check if the Internal phone's CSS have the partition on the line configured for the ATA phone.

Make sure internal phone's CSS should have partition of line and device. Can you please verify if you are dialing the phone's extension directly or is it going through any translation ?

Thanks

Mudit

[nikolaratkovic]

I will try as close as possible to explain the situation.

I have a large number of users and they all have the restriction to make certain calls. One user group has a restriction on mobile phone calls (can call local numbers, city numbers and intercity numbers), the second group can not do international calls (can call local numbers, city numbers, intercity numbers AND mobile), the third can not call anything outside the local network, and there is a group that has no limits. So I have list of CSS... CSSMobile, CSSInternational, CSSLocal, CSSnoLimits and so on...

I also have number of Route Partitions, like, RPmobile, RPinternational, RPlocal, RPnoLimits...

I configured one phone like this... On the Phone Configuration page under the Device information in CSS field I put CSSMobile. In the Directory Number Configuration page in Route Partition field I put RPMobile and in CSS field CSSMobile. With that configuration problem exist. But when I put CSSnoLimits on the Phone Configuration page, everything works fine.

Analog cordless phone that is connected to the ATA device is in a user group that has no limits (CSSnoLimits on both Phone and DN Conf, and RPnoLimits). Also, this applies to faxes that are connected to the ATA devices.

There is some problem with CSS that's for sure, but I dont know what.

[mudmathu · Accepted solution]

Check if the "CSSMobile" has the partition "RPnoLimits" .

Make the ATA phone in "None" partition and then check if the calls still fails from the internal phone.

[nikolaratkovic]

CSSMobile has no RPnoLimits...

I select "None" partition in ATA DN setings, and now it works for coreless phones, but still I can not call faxes. Can you explain to me why we select "None" partition, please?

[mudmathu · Accepted solution]

Hi Nikola,

We suspect right. Its a CSS-Partition issue.

I will try to explain you in brief as why non partition worked.

Example ::

Phone A (Partition-A) -> Calls -> phone B (Partition B) -> calls -> Phone C(Partiton C)

     (CSS-A)                                  (CSS-B)                                   (CSS-C)

CSS-A (= includes) -   Partition B

CSS-B(= Includes) - Nothing

CSS-C (= includes) - Partition A and Partition B

If phone A wants to call to phone B, then the CSS of A should have the Partition B.

Here, Phone A can call Phone B.

B cannot call A and C , as the CSS-B does not have partition A or C whereas C can call both A and B as it has the partition of both.

So, If a Phone is in "None" partition that basically means that anyone can call this phone.

Phone A (Partition-A) -> Calls -> phone B (Partition B) -> calls -> Phone C(Partiton = None)

     (CSS-A)                                  (CSS-B)                                   (CSS-C)

Phone A and B now, can call C as its in None partition.

I hope this helps.

PS .. Rate if you find useful..

[nikolaratkovic]

Thank you my friend, it was very helpful... You received five stars from me

[goranpilat · Accepted solution]

Hi,

OK, seems guys explained what is the problem. What I wanted to add is that I can see you make same conceptual mistake I have been making in the period when I wasn't 100% sure how to behave with partitions and CSS's.

What you probably don't want to do (but you did) is separate local phones by deviding them into different partitions. in 99% you can put all your local phones' DNs (also ATA's, faxes, VG 224, so everything that is local) to one partition, called for example PT_LOCAL. Because you probably dont have a good reason for somebody being able to call one local phone and not being able to call the other (ok, managers and secretarys are exception, but that is other story).

SO basically you put all the DNs into one partition, and only change CSS's of the phones (depending on who is able to call what-mobile, international or intercity, BUT everybody is able to call PT-LOCAL)

So you would have :

Phone1 -able to call local and intercity

Phone 2 - able to call local , intercity and mobile

CSS_INtercity : PT_LOCAL; PT_INTERCITY

CSS_Mobile: PT_LOCAL; PT_INTERCITY; PT_MOBILE

You see that PT_LOCAL is in all CSS's, so everybody is able to call local phones.

Also in most cases it is enough to put CSS only on phone OR Line. Line CSS has priority (the two CSS's partitions are concatenated).

Partition None is reachable by everyone

Hope it clears a little bit

regards

Goran

[nikolaratkovic]

Goran,

Now I understand how CSSs and partitions working, and thanks again for advices!