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50 person VoIP network
HackMyBalls
Registered Users Posts: 6 ■□□□□□□□□□
in CCNA & CCENT
This isn't exactly a CCNA-V or CCVP question (though I've reposted it here in CCNA/CCENT since we get better traffic here), but it's certainly related nonetheless. For those who have done these sorts of large deployments your input would be greatly appreciated.
Essentially, I want to deploy 35 phones for our internal staff and another 15 phones for our half dozen tenants. The tenants won't need any access to our internal network so that means one big VLAN for our 25-person staff (25 phones for each staff member + 10 phones for conference rooms, kitchen, storage, etc. = 35), and probably an individual VLAN for each of the 6 tenants (2-3 phones per tenant) since none of them actually work with each other none of them would want packets broadcast on their network from another tenant. Chime in here if I'm already off-base.
We have two 3560G switches which are PoE capable, and right now we're thinking of going with 7942G phones. Since they're only FastEthernet though I'm wondering if it'll be worth it to go for the 7945G phones with Gigabit as a long-term investment since we very rarely upgrade phones (as in every 15 years). In fact, since we do a lot of file copying from PC to NAS, and since our PC would be plugged directly into the 7942G phones, limiting ourselves to 100Mbps seems pretty silly if we're only talking an extra $3000 for GbE as a 15 year investment.
We'd also be upgrading our router to a 2921 with Call Manager Express, which as far as I know goes up to 100 phones, more than enough for the foreseeable future (worse case we can upgrade to Call Manager Business Edition in the far off future). Our service provider for these 50 extensions is saying they offer SIP trunking and potential for 48 simultaneous calls (VoIP compressed via G.729 to 32Kbps over 24 T1 channels). Incoming calls are free, outgoing minutes uncertain right now but the final cost ends up being just $500/month which seems crazy good. I am concerned about uptime and since this is a router with no redundancy should it fail, and since our phones haven't gone down really, well, ever in 20+ years, redundant links (hell, even POTS lines?) would be in order. Though I'm not certain about our failover service options yet.
So bottom line is this; any suggestions for anything I've said here?
Essentially, I want to deploy 35 phones for our internal staff and another 15 phones for our half dozen tenants. The tenants won't need any access to our internal network so that means one big VLAN for our 25-person staff (25 phones for each staff member + 10 phones for conference rooms, kitchen, storage, etc. = 35), and probably an individual VLAN for each of the 6 tenants (2-3 phones per tenant) since none of them actually work with each other none of them would want packets broadcast on their network from another tenant. Chime in here if I'm already off-base.
We have two 3560G switches which are PoE capable, and right now we're thinking of going with 7942G phones. Since they're only FastEthernet though I'm wondering if it'll be worth it to go for the 7945G phones with Gigabit as a long-term investment since we very rarely upgrade phones (as in every 15 years). In fact, since we do a lot of file copying from PC to NAS, and since our PC would be plugged directly into the 7942G phones, limiting ourselves to 100Mbps seems pretty silly if we're only talking an extra $3000 for GbE as a 15 year investment.
We'd also be upgrading our router to a 2921 with Call Manager Express, which as far as I know goes up to 100 phones, more than enough for the foreseeable future (worse case we can upgrade to Call Manager Business Edition in the far off future). Our service provider for these 50 extensions is saying they offer SIP trunking and potential for 48 simultaneous calls (VoIP compressed via G.729 to 32Kbps over 24 T1 channels). Incoming calls are free, outgoing minutes uncertain right now but the final cost ends up being just $500/month which seems crazy good. I am concerned about uptime and since this is a router with no redundancy should it fail, and since our phones haven't gone down really, well, ever in 20+ years, redundant links (hell, even POTS lines?) would be in order. Though I'm not certain about our failover service options yet.
So bottom line is this; any suggestions for anything I've said here?